The late actor couldn't be further from his Glee alter ego in this shocking new clip.
Cory Monteith couldn't be further from Glee alter-ego Finn Hudson in his final film, McCanick.
The late actor is barely recognisable in new stills released online today.
Video: Cory Monteith's penultimate film, All The Wrong Reasons
Tragically, Cory plays a drug addict in the movie, filmed several months before his death.
Director Josh Waller said the actor looked upon the role as 'something of a cathartic experience,' and was 'moved, emotionally' when he saw the final cut.
It's thought the film tells the story of a drug-addled street dealer, recently released from prison, who is hunted down by the detectives who helped convinced him.
And Cory certainly looks the part.
Gone are his handsome looks, and in their place, stringy long locks and a grubby hooded coat.
The moody crime flick, currently thought to be in the final stages of production, also stars David Morse and Mike Vogel.
Speaking of hiring Cory for the role, director Josh Waller told the LA times: 'In my mind, I was envisioning a teeny little drug guy [for the role], but Cory Monteith is this tall, strapping man.'
'But when I met with him, he wanted to do it so badly. He was very vocal about his past, and said he wanted to tap into things from his youth that he hadn’t been able to use as an actor yet.'
'The second that we started shooting, like literally the moment that he was on camera, any concerns that I had were gone. Immediately gone.'
This comes after it was revealed McCanick will debut at the 38th Toronto Film Festival in September.
The flick will open alongside Cory's penultimate film, All The Wrong Reasons, an ensemble drama which tells the story of a store manager whose wife struggles with post-traumatic stress disorder brought on by a family tragedy.
Director Gia Milani revealed that the actor saw the film just weeks before his death, and 'loved' the result.
'Cory saw the film a few weeks [before his death],' she said in a statement to EW.com.
'He said he loved how layered it was and he thought it was intense. He loved Finn [his character on 'Glee'] and always talked about how blessed he felt to have been cast in 'Glee,' but like any artist, he wanted to play other roles too. I think he wanted to prove to himself he could do more.
'And he did prove it. When I last saw him at the screening, he looked super fit, had a lot of energy. I think that’s why this is such a tremendous shock. He seemed to be doing so well.'
VIDEO: Watch Cory Monteith in McCanick, here…
What do you think of Cory Monteith's final film trailer? Let us know in the comments box below...
Video: Cory Monteith's penultimate film, All The Wrong Reasons
Cory Monteith: Look back at his life in pictures
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