Fan Casting Shazam! (2009)

Billy Batson is an ordinary teenager, who is adopted by a catholic family after his mother abandoned him as a kid. But one day, after defending his adoptive friend and eventual sidekick, Freddy, he runs into a subway which goes to the Magic Rock. There, Batson meets the Wizard Shazam, a wizard who is looking for a succesor to whom to give his powers. Later, he realizes his superhuman abilities, and learns an evil wizard is triyng to find the succesor and destroy him.