Bradley Cooper was on Jimmy Kimmel last night talking about his latest film, Dark Fields where he is working with one of his acting inspirations - Robert DeNiro. "(It was) one of the best experiences I've ever had," Cooper exclaimed.

Cooper tried every which way to get DeNiro to talk about Raging Bull on set but with little success. He jokes that DeNiro was probably thinking, "You think you're acting, well, watch this!"

Check out the fun interview below.

iamROGUE talks with writer/director, Neil Burger, for an Exclusive On Set Video Journal from his latest film, 'Limitless'. It's madness on the streets of Philadelphia as Burger shoots a scene with Robert DeNiro and Bradley Cooper.

iamROGUE talks with writer/director, Neil Burger, for an Exclusive On Set Video Journal. Neil Burger talks about shooting police station scenes with Bradley Cooper on the set of his latest thriller, Limitless based on the novel, The Dark Fields.

iamROGUE talks with writer/director, Neil Burger, for an Exclusive On Set Video Journal. Neil Burger talks about shooting his latest thriller, Limitless, in his hometown of New York and in Philadelphia, PA.

iamROGUE talks with writer/director, Neil Burger, for an Exclusive On Set Video Journal.  Limitless director, Neil Burger discusses different visual styles in his films as well as the bloody set scene before him.

iamROGUE talks with writer/director, Neil Burger, for an Exclusive On Set Video Journal. Neil Burger talks about the themes of perception and power in his thriller, Limitless.

RougeTV talks with writer/director, Neil Burger, for an Exclusive On Set Video Journal. Day 16 of the film, Limitless, Neil Burger shares how much fun he is having working with the amazing Bradley Cooper.

Limitless hits theaters March 18, 2011.

RougeTV talks with director, Neil Burger, from the set of his latest thriller, Limitless, about the" smart drug" or NZT.

Limitless hits theaters March 18, 2011.