What movie and television projects has Leo Szilard been in?

Leo Szilard was a physicist, not an actor. He is known for his work on the Manhattan Project and for his contributions to nuclear physics. He did not participate in any movie or television projects.

It's possible you are thinking of someone else, or perhaps you are referring to a fictional character or a movie about the Manhattan Project that might have a character inspired by Szilard.

If you can provide more context or details about the projects you are interested in, I might be able to help you further.