Morgan Freeman, 77, says he uses cannabis to treat pain from fibromyalgia in his left hand

Hollywood's favorite narrator Morgan Freeman opened up about being an advocate for legalizing marijuana last week, claiming that 'pot is very useful'.

Freeman, 77, is a longtime user who was turned on to the drug by his first wife 'many years ago'.

'I'll eat it, drink it, smoke it, snort it! This movement is really a long time coming, and it's getting legs -longer legs,' he said.

The Oscar-winning film legend was in a car accident seven years ago, in which he suffered injuries that still cause pain, according to the Daily Beast.

He was driving through Mississippi when his 1997 Nissan Maxima skidded off the road and flipped several times.

Emergency responders rescued Freeman from the crash using the Jaws of Life, and he was taken to the hospital with a shattered left shoulder, arm and elbow, and nerves had to be repaired with a four-hour surgery.

Freeman still wears a yellow compression glove on his left hand - which he hasn't regained full use of - to prevent blood pooling.

Pointing to the glove, Freeman told the Daily Beast that 'Marijuana has many useful uses'.

He added: 'I have fibromyalgia pain in this arm, and the only thing that offers any relief is marijuana.

'They're talking about kids who have grand mal seizures, and they've discovered that marijuana eases that down to where these children can have a life. That right there, to me, says, "Legalize it across the board!"

'And what negative effects does it have? Look at Woodstock 1969. They said, "We're not going to bother them or say anything about smoking marijuana," and not one problem or fight.

'Then look at what happened in '99,' he says, referencing the less marijuana-friendly 30th-anniversary event, which resulted in riots and arrests.'

Despite his hand injury, Freeman is still a shining star in Hollywood, having been in at least four films in 2013 and 2014.

His first film appearance of 2015, Last Knights, debuted in April.

Freeman has been public about his marijuana smoking in many interviews. Pictured here he is smoking what appears to be a cigar in a film with Keanu Reeves