Brad Pitt donned his best black-tie ensemble Monday night to premiere his highly anticipated movie 'The Curious Case of Benjamin Button' along with Angelina Jolie and his mom and dad -- and Brad tells ET how his classy look was one of theme's of the night!

Brad tells ET's Kevin Frazier that like the film, the idea for his ensemble and the premiere was to bring the elegance back to Hollywood.

"… It's a movie in the vain of the classics," Brad says. "And a kind of classic epic, dealing with life and love, and all that fantastic stuff, so yeah that's the idea."

Brad goes on to explain that director David Fincher took the film to a whole new level.

"You can feel a film when something's happening off the page," he says. "And yeah certainly felt it on this one. Fincher's done an extraordinary, extraordinary job here. I find it quite special."

In theaters Christmas Day, the magical 'Curious Case of Benjamin Button' follows the extraordinary life of the title character (Brad), who is born as an old man and ages backwards as he advances in years. Cate Blanchett is his love interest who "meets him in the middle" when their ages coincide.

Watch ET for more with the stars of 'The Curious Case of Benjamin Button'!