Christian Bale has called shooting his new movie The Fighter as a 'rollercoaster'.
The actor is back on the big screen in the new year with David O.Russell's latest movie, which sees him team up with Mark Wahlberg.
The actor takes on the role of Dicky Ward in the story of boxer Micky - and he is already being tipped for a Best Supporting Actor.
Speaking to MTV News the actor said: "[We said] 'Look, there's no story here unless we show the dregs. You've got to show the lows'," he explained.
"It's the rollercoaster of their life that makes it a fascinating story. Each one individually doesn't make a movie, but you combine the two brothers, and there's a fascinating movie."
The actor also revealed that there were difficulties on set between the director's vision of event and how the family saw things.
"We [had] to show that side of it, and also condensing a life into two hours, you're taking some license. Initially, there were a lot of problems.
"Dicky would be saying, 'That's not how it went down. I said this not that' and 'He wasn't there at that point. He was over here'," he recalled.
"[We told him] 'Right, but we've had to kind of blend these two scenes, because otherwise this movie is going to be years long'.
"So he came to understand that, but there were a couple of moments where I had to say, 'Dicky, don't go punch [director] David [O Russell] now. Don't go punch him. It's all right, count to ten, let's figure it out.'
"And I'm sure David and Mark had to stop him from punching me and stuff."
The Fighter was nominated for Best Motion Picture Drama at the Golden Globes with Bale and Wahlberg also picking up nods for their performances.
The Fighter is released 4th February.
Tagged in Christian Bale