Movies
Rex Features
The Supernatural star was asked about the rumours at exhibition Supernatural-Con in Vancouver, Canada.
He said: "It's been brought to my attention that it's online. I have not gotten a call from my agent, I have not gotten a script, I have not talked to anyone about it. I think it's all a rumour."
He added: "I'm sure [they'll cast] some big name film actor. They're not going to pull some dude off The CW and give him Captain America. I'm squashing it now, I know nothing about it."
Actors Leonardo DiCaprio and Brad Pitt have also been speculated as potential leads to portray US soldier-turned-superhero Steve Rogers in Captain America: The First Avenger.
The picture is expected to begin production in June 2010 for release in 2011.
Movie Reviews
'Extremely Loud & Incredibly Close' reviewTom Hanks features in a long and winding journey through New York after 9/11
At the Movies
David Lynch: 10 reasons to worship himIt's time to celebrate director David Lynch as the BFI screens a season of his films.
Movies Interviews
Max von Sydow 'Extremely Loud' interviewActing legend Max von Sydow on Extremely Loud & Incredibly Close, The Exorcist and Flash Gordon.
Box Office Charts
'The Woman in Black' wins UK box officeThe Woman in Black beats The Muppets and Star Wars at the the UK box office.
