Thousands of comic book superheroes assemble for Stan Lee's birthday in a fan film that calls itself "the greatest of all time," a claim that seems pulled from the bombastic language of comics -- though it actually makes a good case for the title.

Fan service is rarely served up at this level of quality, so if you've ever wanted to know the answer to those burning who-could-beat-whom questions to insane things you've never thought to ask, they're on it.