There wouldnt be a Marvel Cinematic Universe without Robert Downey Jr.
In hindsight, I get to take credit for everything, the actor joked onJimmy Kimmel Live!Wednesday.
He also convinced Chris Evans to become Captain America.

Credit: ABC
As Downey explained to Kimmel on Wednesday, Spider-Man was actually his favorite superhero growing up.
He was funny, he was cool, he was young like us.
Peter Parkers beloved aunt somehow gets younger with eachSpider-Manreboot, as if she was Benjamin Button.
She seemed ancient before.
Now shes Marisa Tomei.
Hes got a hot aunt, Downey said.
My God, just think of the possibilities.
Watch the full clip below.