According to Seven Web Heads, Carrey has filmed a small role in the movie, which appears to be supported by a photograph tweeted by a fan back in March showing the actor on the set of the Ravencroft Institute for the Criminally Insane. This has led to speculation that Carrey could be playing Cletus Kasady, the alter ego of Carnage, in what will presumably lead to a larger role in either The Amazing Spider-Man 3 or The Amazing Spider-Man 4... assuming there's any truth in the report, of course.
The Amazing Spider-Man 2 is due for release on May 2nd, 2014, with returning stars Andrew Garfield (Spider-Man), Emma Stone (Gwen Stacy) and Sally Field (Aunt May) joined by Spidey newcomers Jamie Foxx (Django Unchained) as Electro, Paul Giamatti (Sideways) as The Rhino, Dane DeHaan (Chronicle) as Harry Osborn, Chris Cooper (American Beauty) as Norman Osborn, and Felicity Jones (Like Crazy) and Colm Feore (Thor) in as-yet-unrevealed roles.