Billy Batson finds himself in a similar situation, only in addition to being able to turn back into a kid whenever he wants, he also gets superpowers whenever he’s in adult form.
On the off chance you’ve never stumbled upon the Tom Hanks classic Big (it’s really worth a watch), it follows a young boy named Josh Baskin who is desperate to be “big.”
After a spooky encounter with an arcade fortune teller machine, his wish is granted, and he awakens the next morning and discovers he’s been turned into a 30-year-old man.
Zachary Levi already has a little superhero movie experience under his belt from playing Fandral in the latter two Thor movies, his above comment to Yahoo clearly indicates he’s excited to headline Shazam so that he can finally act out his own Big-like story.