Just Jared has posted a photo from the set of Ben Stiller's next directorial effort Tropic Thunder. It reveals Tom Cruise in his secret cameo. Here is the photo:

Tom Cruise's <i>Tropic Thunder</i> Cameo Revealed

Ben Stiller says Tropic Thunder is a "a comedy about five actors who go on location and find themselves relying on their boot camp experiences when they get stuck in a real war-like situation."

The film opens July 11th, 2008.