The former Marvel Comics chairman teased during a press conference at the London Film and Comic Con event today (July 11) that he is very proud of the expanding Marvel Cinematic Universe, which will soon include Guardians of the Galaxy and Ant-Man.
"It helps the comic book business. The movie business has been unbelievably incredible. The Marvel movies are about the biggest money-making movies of all."
Lee then quipped: "DC could probably make a lot more money with Superman and Batman if they announced that I'd have a cameo in it!
"People wouldn't believe it - they'd have to go to the theatre to see it!"
Lee also credited the Marvel Cinematic Universe with making an indelible impact on Hollywood over the last six years.
Chris Evans, Hugh Jackman and Chris Hemsworth are among the stars who received career breakthroughs in films like Captain America, X-Men and Thor.
"The movies have been great," the Marvel Comics icon said. "We have been so lucky. We've got the best directors, the best special effects people and wonderful actors."
He continued: "People that had not been big stars before like the fellow who plays Thor (Chris Hemsworth) - he's wonderful! I was with him yesterday - I did my cameo of course [for Avengers: Age of Ultron].
"And Chris [Evans] who plays Captain America… He's excellent."
Guardians of the Galaxy - the next Marvel movie - opens on July 31 in the UK and August 1 in the US. Watch a trailer below: