It's just that, a family comedy. Not really what I look for in superhero movies, to be honest, but I don't know much about the original characters, so I can't say if it's faithful to the comic or just a different take of it. Still, it's an entertaining movie, even though it could easily loose 20 minutes or more, definitely too long for this kind of movie. Acting it's ok in general, but it really bettered me that Billy and Shazam didn't act and talked like the same person, the were really disjointed as a character that only changes his aspect. Story is ok (again, for a comedy) and effects are ok too but looking quite average on the designs... Nothing special or new, really, comedy and superheroes has been done before. Still, it's a watchable movie, easy going, I can see it can please a lot of people for a bit of relaxed fun.