Robert Downey Jr. says it is inevitable he will win an Oscar

The 'Iron Man 3' star believes it is just a matter of time before he collects an Academy Award because he knows he is one the "best actors" of his generation.

Downey cheekily said: "I know it's going to happen. That's just a fact ... Because it just doesn't make sense. That's why I don't mind showing up and watching everybody else get them ... Look, even if I don't get one directly, eventually they're just going to have to give me one when I get old. So no matter how you slice it, I'm getting one ... I should probably have more, but zero's fine."

The 48-year-old actor has been nominated for an Oscar twice before; for Best Actor his portrayal of Charlie Chaplin in 1992's 'Chaplin' and Best Supporting Actor in 2008 comedy 'Tropic Thunder'.

Despite Downey's bravado, he insists he isn't bothered if wins awards for his acting and is just content that people like his movies, especially his portrayal of Tony Stark in the 'Iron Man' franchise.

In an interview in the new US issue of GQ magazine, he said: "I don't care. I used to think I cared, and I couldn't care less. Now, I'm not saying I wouldn't get a little choked up, but it is amazing to see how people are literally hyperventilating when they get up there, because they have such an attachment to this outcome. I mean, it's not like we're at the Olympics or something."