(Cover) - EN Showbiz - Bradley Cooper began to subconsciously act like Robert De Niro when they starred together in new movie Limitless.

The Hollywood funnyman admits he was in awe of the movie legend and couldnt help but mimic his mannerisms when they spent time with each other on the movie set of the thriller. Bradley realised he was behaving like Robert during the scenes they shared together and even continued to act in this way when he was filming The Hangover sequel.

Its like osmosis, you cant be around that guy without taking on some of his mannerisms and I started to worry that in the scenes I had with him that I would start doing him to him, not even consciously, Bradley said during an interview with British television show Daybreak. So much so that when we were filming The Hangover II and we were in Bangkok and I am talking and they are like, Dude, you are doing De Niro. I was like, I know, its crazy!

Bradley went on to reveal shooting has wrapped on The Hangover Part II. He is hugely confident the follow-up to the smash hit comedy about a bachelor party in Las Vegas and starring Zach Galifianakis, Ed Helms and Mike Tyson will be just as popular. The sequel takes place in Thailand and sees Stu Price played by Ed planning his wedding.

Yes, its in the can now, he added. I think it might be epic, you know, it might be a big one. I think, I got to stop saying that. (C) Cover Media