Black Mass stars Dakota Johnson and Julianne Nicholson have revealed that despite the ageing prosthetics and heavy make-up, Johnny Depp still looks sexy on screen.

The Hollywood star portrays Boston gangster James “Whitey” Bulger in Scott Cooper’s biopic, with Dakota as his wife Lindsey Cyr and Julianne Nicholson as Marianne Connolly.

Fifty Shades Of Grey star Dakota admitted seeing her co-star on set gave her “the shivers”, because of his likeness to his alter-ego.

She said: “It gives you shivers. I had done so much research on him and on these people that the photos that you see of Jimmy Bulger – it’s uncanny, the resemblance. So it was wild.

Johnny Depp in Black Mass
Johnny Depp in Black Mass (Warner Bros)

“And he is just a whole universe in a person, so it was quite beautiful. Quite a wonderful thing to be a part of.”

The actress added: “James Bulger, I think he was quite a charming person. He had a very colourful sexual history.”

Julianne, who had an intense scene with Johnny, added: “In that scene, it was terrifying. He does look like that and have those eyes, and what he was bringing is really terrifying.

Johnny Depp and Benedict Cumberbatch in Black Mass
Johnny Depp and Benedict Cumberbatch in Black Mass (Warner Bros)

“But even with those messed up teeth and that messed up hairstyle, he’s still sexy. He’s so charismatic. That, to me, was scary, but there was also a seduction happening that I was totally up for.”

She also revealed how many of the cast, which also included Benedict Cumberbatch, Joel Edgerton and Kevin Bacon, would keep to themselves once the cameras were off.

“Everyone was pretty private and holding on to their characters when the cameras were rolling or not,” she said.

Black Mass opens in UK cinemas on November 27.