Follows the story of the 11

Palestinian terrorists who killed Israeli Olympians at the 1972 Games beat and tortured the victims and even castrated one of the hostages while his teammates watched.

The horrifying new details of the cruelty the 11 athletes went through have been revealed by Ankie Spitzer and Illna Romano, the widows of two men who were slain in the massacre.

Documents and photographs after the deadly attack on the Olympic Village, which went on for 20 hours, were initially covered up by German police.

But the true extent of the horrors is now being made public for a new documentary, Munich 1972 & Beyond.

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Palestinian terrorists who killed Israeli Olympians at the 1972 Games beat and tortured the victims and even castrated one of the hostages. The horrifying new details have been revealed in a new documentary on the deadly attack. A German is seen negotiating with one of the terrorists in the Munich Olympic Village

Blood stains and bullet holes mark the place where the armed Palestinian terrorists killed two of the Olympians, the other nine died just hours later

Israel's Ilana Romano (left), the widow of middleweight weightlifting champion Yossef Romano, and Ankie Spitzer, the widow of fencing coach Andrei Spitzer, have released information that had been covered up by German police for almost two decades

Relatives of the victims found out the grisly details of their loved ones' deaths in the 1990s, and have shared the information for the new film.

Mrs Romano's husband Yossef, a weightlifter, was one of the captives killed in the early stages of the brutal massacre.

She told the New York Times: 'What they did is that they cut off his genitals through his underwear and abused him.

'Can you imagine the nine others sitting around tied up? They watched this.'

Weightlifter Yossef Romano was mutilated and tortured by Palestinian terrorists during the attack

She added that the photographs were 'as bad I could have imagined'.

'The moment I saw the photos, it was very painful,' she added.

'I remembered until that day Yossef as a young man with a big smile. I remembered his dimples until that moment.'

'At that moment, it erased the entire Yossi that I knew,' she said.

All 11 athletes were killed after eight gunman from the militant group Black September, a Palestinian organization responsible for nearly a dozen plots in the early 1970s, stormed the Isareli team's hotel rooms.

Five of the gunmen were killed by German security as they tried to escaped, while three more were put in prison.

The three who survived were put in a German prison but released by the authorities and sent to Libya after Black September supporters hijacked a plane and demanded to blow it up unless they were let go.

The three survivors - Jamal Al-Gashey, Adnan Al-Gashey, and Mohammed Safady - went into hiding for years.

It is unclear what became of them. Adnan Al-Gashey and Safady died, but it is not clear whether they were assassinated by Israel or died of other causes.

Jamal Al-Gashey was alive in 1999, when he gave an interview, but what became of him after is unclear.

Mrs Spitzer, whose husband was Israeli fencing coach Andrew Spitzer, explained why she wants the full story to be known.

According to the New York Daily News, she told filmmaker Steven Ungerleider: 'I think you all should know this was not just a hostage story and horrific murder in the Olympic Village - there was torture, our husbands were beaten, and God knows what else.'

Mr Romano, a champion weight lifter, was shot when he tried to overpower the terrorists early in the attack.

He was left to die in front of the other hostages and castrated. It is not clear whether this happened before or after he died.

Other hostages were beaten and sustained serious injuries, including broken bones, Mrs Spitzer told the New York Times.

Mr Romano and another hostage died in the Olympic Village.

Nine more were killed during a failed rescue attempt after they were moved with their captors to a nearby airport.

Mrs Spitzer told the Times: 'The terrorists always claimed that they didn't come to murder anyone - they only wanted to free their friends from prison in Israel.

'They said it was only because of the botched-up rescue operation at the airport that they killed the rest of the hostages, but it's not true. They came to hurt people. They came to kill.'

Mrs Spizter said they constantly pushed for more information on the attack to be released, but the German authorities refused - telling them there was nothing.

Their quest to get more details took a turn in 1992 when Mrs Spizter appeared in a German TV interview to mark the 20th anniversary.

She described her frustration at not being given more police documents and accounts from the attack.

After it aired, a man who wanted to remain anonymous contacted her and said he had 80 pages relating to the case.

West German policemen wearing sweatsuits, bullet-proof vests and armed with submachine guns, take up positions on September 5, 1972 on Olympic Village rooftops where armed Palestinians were holding Israeli team members hostage

They then pushed the German government for more - which is when the sickening images were released.

The film, directed by Stephen Crisman, is slated to be released in time for next year's film festivals, which will also coincide with the opening of a memorial in Munich.

Ungerleider said: 'We set out to tell the story of this 43-year struggle to get acknowledgement for the victims and to build this place, to recognize the struggle, and build a place for mourning and grieving and reconciliation.'

HOW THE 1972 ATTACKS UNFOLDED It began on the morning of September 5, 1972, with six days left in the Games, when eight terrorists stormed the Olympic village and raided the Israeli contingent's apartment. Two Israeli athletes were killed and nine more were seized as hostages. They demanded the release of over 200 Palestinians serving time in Israeli jails, along with two renowned German terrorists. After a day of unsuccessful negotiations, the terrorists collected the hostages and headed for the military airport in Munich for a flight back to the Middle East. At the airport, German sharpshooters opened fire, killing three of the Palestinians. A horrifying gun battle ensued, claiming the lives of all nine of the hostages and two terrorists on board a helicopter. The three surviving assassins were captured, but later released by West Germany following the hijacking a Lufthansa airliner by Black September. Advertisement

Most of the attention was cast on failures by German security in the wake of the attack.

They were: Moshe Weinberg, the wrestling coach; Romano; Ze'ev Friedman, a weightlifter; David Berger, another weightlifter; Yakov Springer, a weightlifting judge; Eliezer Halfin, a wrestler; Yossef Gutfreund, a wrestling referee; Kehat Shorr, a shooting coach: Mark Slavin, a wrestler; Spitzer; and Amitzur Shapira, a track coach.

Their bodies were identified by relatives in Munich and, because of Jewish tradition, their funerals were held virtually as soon as they were flown home.

In the aftermath of the attacks, Golda Meir, Israel's fourth Prime Minister, secretly authorized the national intelligence agency Mossad to track down and kill those allegedly responsible.

They set up a number of teams to track down the fedayeen, the name they gave to Palestinian militants, with the help of their European substations.

Once a list of targets was compiled, a wave of Black September members were assassinated across Europe.

It later became known as Operation Wrath of God or Mivtza Za'am Ha'El.

In an interview with Israeli newspaper Haaretz in 2006, former Mossad chief Zvi Zamir was asked whether the missions were driven by vengeance.

He said in response: 'We were not engaged in vengeance. We are accused of having been guided by a desire for vengeance.

'That is nonsense. What we did was to concretely prevent in the future. We acted against those who thought that they would continue to perpetrate acts of terror.

'I am not saying that those who were involved in Munich were not marked for death. They definitely deserved to die. But we were not dealing with the past; we concentrated on the future.'

The wrecked helicopter that was the center of a failed rescue attempt at a military airport in Fürstenfeldbruck. All nine hostages left, five Arab terrorists and a Munich police officer lost their lives during the operation

A German Army bus is parked underneath the hotel. Nine of the Israeli hostages were inside at the time

A coffin with one of the slain Israeli Olympians is carried out of the Munich Olympic Village a day after the horrendous attacks unfolded

Six of the 11 Israeli hostages killed by the Palestinian 'Black September' cell at the 1972 Munich Olympic Games. Yossef Romano, the torture victim, is top center

In 2012, it was revealed that German Neo-Nazis gave the Palestinian terrorists logistical support in the build-up to the attack.

Abu Daoud, who is believed to the mastermind of the atrocity, met fascist Willi Pohl in Dortmund, according to a city police dossier kept secret for 40 years.

But despite the file being passed on to the German Verfassungsschutz intelligence agency, there is no evidence that they acted on the 2,000-page report.

And this lack of action allowed Daoud, who is named in the police report as his alias Saad Walli, to travel the country to meet fellow terrorists and plan the attack.

Pohl, who is now a crime fiction author, told magazine Der Spiegel: ‘I chauffeured Abu Daoud through the entire Federal Republic where he met in different cities with Palestinians.’

The 68 year old, who insists he had no idea the group were planning the attack, claims he unwittingly also helped Daoud obtain false passports and other documents.

But Pohl allegedly later bragged to his employer about his contact with the extremist wing of the Palestinian Liberation Organisation, according to the report.

Pohl, who spoke on the condition that he was not photographed, was later asked by the Palestine Liberation Organization's leadership to carry out vengeance attacks for the police killings of five militants, the files say.

Several possible attacks were considered, including a hostage-taking at the cathedral in Cologne, it was claimed.

But he was arrested in Munich in October 1972 and later jailed for two years for possession of illegal weapons.

The Olympic flag hangs at half-mast during the funeral ceremony in the Olympic Stadium for the victims of the terrorist attack