Image copyright Sony Pictures Image caption Sony film The Interview has featured highly in hackers' demands

A comedy film about North Korea that had its Christmas Day launch cancelled after a major cyber attack and threats against US cinema-goers is now to get a limited theatrical release, Sony says.

The Interview will be shown in some independent US cinemas on Thursday.

Sony Chairman Michael Lynton said he was "excited" that the comedy, about a plot to assassinate North Korean leader Kim Jong-un, would now be seen.

Two cinemas in Atlanta and Austin have already revealed screenings.

They said via social media that Sony Pictures had authorised them to show the film, which has been at the centre of escalating tensions between the US and North Korea.

"Breaking news," tweeted Tim League, founder of the Alamo Drafthouse cinema in Austin.

"Sony has authorized screenings of THE INTERVIEW on Christmas Day. We are making shows available within the hour."

'Freedom prevailed'

The White House welcomed the development, with a spokesman saying that President Barack Obama applauded Sony's decision and that the US was a country that "believes in free speech".

Seth Rogen, who directed and starred in the film, tweeted: "The people have spoken! Freedom has prevailed! Sony didn't give up!"

Sony had previously announced that the film's release would be pulled completely, following a hacking attack on the company and threats against cinema chains that planned to screen the film.

That decision drew criticism in Hollywood, with some calling it an attack on the freedom of expression.

Mr Obama had also called Sony's initial decision to pull the film "a mistake".

Image copyright Sony Pictures Image caption The film was branded an "act of war" by North Korea

Analysis: Alastair Leithead, Los Angeles

What started out as a Christmas comedy caper has become quite the seasonal thriller. It's got everything: cyber-attacks, terror threats and an international incident between America and North Korea, but all of it is a drama Sony Pictures could do without.

The company has been through a lot in the last month, and has now backtracked on its decision to pull the film completely. As yet the big theatres have still not said when, or whether, they might screen the film.

Sony Pictures Entertainment has been hit hard - first by the embarrassment of personal emails being dumped online. But as the seriousness of the cyber-attack unfolded, it also became clear that the personal details of thousands of staff and former-employees had been stolen - opening the door to class-action lawsuits.

Unreleased films leaked online, and then the pulling of a major movie, could cost tens of millions of dollars - let alone the price for the computer network repairs and beefed-up security.

It's a still-unfolding script to a drama the critics might even slam for being a little too far-fetched.

'First step'

Hundreds of independently-owned theatres had signed a petition expressing support for the film and its screening.

However, major movie chains in the US are thought unlikely to take part in the release at this stage.

Mr Lynton said: "We are continuing our efforts to secure more platforms and more theatres so this movie can reach the largest possible audience."

He also said he "hoped it would be the first step of the film's release".

The company has yet to reveal further details of its release plans, but there is also speculation that video on-demand (VOD) will be offered as part of the package.

Sony's decision to show the film came hours after North Korea suffered a severe internet outage that effectively shut down its internet services for 10 hours.

Image copyright AFP Image caption North Korea says the film hurts the "dignity of its supreme leadership"

It was not clear what caused this. North Korean officials have not commented on the issue.

The country's internet services appeared to suffer a second outage on Tuesday afternoon, but they were restored in under an hour, an internet monitoring company said.

US officials have declined to comment on who might have been responsible for the shutdown.

Mr Obama has previously vowed to respond to a hacking attack on Sony, which led to sensitive data and unreleased film material being leaked.

The US said an FBI investigation showed that North Korea was responsible for the cyber attack on Sony - claims denied by North Korea.

The Interview saga

The Interview features James Franco and Seth Rogen as two journalists granted an audience with Mr Kim. The CIA then enlists the pair to assassinate him.