It's a new film, which seems to have been based off a comic, coming out
in 2010this year.
Dave Lizewski is an unnoticed high school student and comic book fan with a few friends and who lives alone with his father. His life is not very difficult and his personal trials not that overwhelming. However, one day he makes the simple decision to become a super-hero even though he has no powers or training.
So, despite the trailer, the film's not all about the little girl.