Hot on the heels of the news that Garry Shandling is on the set of Iron Man 2, it turns out that there is another famous Gary prowling around the film. Gary Oldman has been seen on set, according to our friends at IESB. Oldman, who is probably best known to superhero fans for his turn as Commissioner Jim Gordon in Batman Begins and The Dark Knight, is on the set at the present, although it is currently unknown what character he might be playing.

Speculations about Oldman's role seem to be focused on the possibility of him playing Howard Stark, father to Robert Downey Jr's Tony Stark. Early reports about the script for Iron Man 2 suggested that there were major flashback scenes in the film which set up future Marvel franchise films, and at one point it was suggested that Tim Robbins might be taking on that role. With Robbins recently denying that rumor, perhaps Favreau and Marvel offered the part of Iron Man's dad to Oldman.

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It is also worth noting that this may affect Oldman's future with Warner Brothers. Oldman currently has pivotal roles in two of Warner Brother's major franchises, with his role as Commissioner Gordon in the Batman movies, and his role as Sirius Black in the Harry Potter films. The last time we had an actor depart from one studio and it's superhero franchise to appear in a superhero movie made by another studio, it was James Marsden, who left Fox's X-Men: The Last Stand to appear in Superman Returns - and consequently, Marsden's Cyclops was killed early on in the film. While it seems unlikely that Warner Brothers would kill off Commissioner Gordon in the next Batman film, it wouldn't be a surprise to see some sort of tension between the actor and the studio.

In other Iron Man 2 news, IESB has confirmed that Garry Shandling's role in the film will actually be that of Senator Stern. Earlier reports were vague on what role Shandling had, saying only that he was either a reporter or a Senator.

Iron Man 2, directed by Jon Favreau, will continue the tale of Tony Stark and his armored alter-ego as he continues his transformation from billionaire industrialist to super-hero. Robert Downey, Jr. will star as Tony Stark, with Gwynety Paltrow returning in the role of his assistant Pepper Potts. Don Cheadle, Mickey Rourke, Sam Rockwell, Scarlett Johansson and Samuel L. Jackson also star. Iron Man 2 blasts into theatres May 7, 2010.