Comic book icon Stan Lee also thinks DC should have him do a cameo in Batman v Superman in order for it make more money.
As if there was any doubt, legendary comic book icon Stan Lee has confirmed that he'll be making a cameo in Avengers: Age of Ultron. This was revealed by Lee himself at the London Film and Comic Con event, where he also mentions how the Marvel films have given unknown actors their breakthrough roles to become stars.
The movies have been great...We have been so lucky. We've got the best directors, the best special effects people and wonderful actors. 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.
Not only did Lee confirm his cameo, but he also mentions that DC should probably ask him to appear in Batman v Superman: Dawn of Justice in order for the film to make more money.
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!
Personally, if I was a Warner Bros. exec, I'd ask Stan Lee to appear in a DC movie just as a good luck charm. But understandably, that won't ever happen -- unless we get a Marvel vs. DC crossover film of some sort.
For more Avengers: Age of Ultron news, make sure you read this (potentially spoiler-ish) bit where the Hulk's character might end up at the end of the second Avengers movie. Also of note and less spoiler-y, is the fact that Andy Serkis (Gollum from Lord of the Rings) has been confirmed to appear in Age of Ultron though at a still unspecific role.
Source: Digital Spy