"The fact that it was nominated for four acting awards and editing and directing, the Academy really has acknowledged the film. I'm really proud of it," he said.
Cooper first garnered our attention on the television series, "Alias." Since then, his career has skyrocketed.
"I think I'm realizing it as it's happening," he said. "I don't think I realized how much people didn't even think I was an actor before this movie. It's like these weird back handed compliments, like, 'oh the guy from "The Hangover,"' maybe I had a delusion that I was an actor."
Cooper's mother will be on the red carpet for her son's big night.
"She's a force, let me tell you. Don't mess with her. She's Italian from south Philly, no filter. It's going to be an interesting red carpet, I'll just say that," he said.
With Oscar Sunday just days away, play the My Picks game to choose who you think will win in each award category.
The My Picks experience will live on Oscar.com, the Oscars App, Facebook, ABCNews.com, OTRC.com and GMA.Yahoo.com. Play My Picks right now!
Have a smart phone or tablet? Download the free official Oscars app to get news and updates about the show. It's available for Apple, Android and Kindle devices.
Get the full list of 2013 Oscar nominees
The Oscars will air live on ABC7 on Feb. 24.
Oscar Sunday lineup:
- 1:30 p.m.: On The Red Carpet at The Oscars
- 4 p.m.: The Oscars Red Carpet Live
- 5:30 p.m.: The Oscars
- 8:30 p.m.: On The Red Carpet at The Oscars
- 10 p.m.: Jimmy Kimmel Live
- 11 p.m.: Eyewitness News
