It wouldn't be so silly if it was actually a fantasy reality conjured up by an injured kid in a hospital. For instance, what if Billy Batson had a head injury he got after being hit by a truck that swiped him when he tried to save a dog in the street from that same truck? When the paramedics get him to the hospital, the doctor who treats him (Morgan Freeman) knows he'll need time to recover, but needs someone to be there talking to him to help 'bring him back'.
Billy's father, a widower, is a captain with the fire department, and arrives at the hospital after Billy is stabilized and learns from the doctor that he'll need someone to stay with him and talk to him as his concussed brain tries to recover. Billy's father, worried about losing his son, says he'll stay as long as he needs to. The doctor, knowing that some people run out of things to talk about pretty quick, gives Billy's father a box of comics to read to Billy, saying they were left over from an orphanage that used to be in the same building the hospital is in. It had been closed shortly before the hospital moved in. Wanna guess which comic books are in the box?
Surprise! They are Whiz Comics, #1 - 50, tattered and torn, but still readable. (Still powerful imagination magic.)
To make this short,
TOO LATE FOR THAT.
Billy's father reads these to his son, who imagines he is the hero in the comic, a hero just like his father. The wizard Shazam is the doctor (Morgan Freeman). Needless to say, after several adventures related to the comic stories, Billy eventually recovers shouting SHAZAM! just as he wakes up. Happy ending, and any silly stuff is part of a kids imagined reality. (He saved the dog, by the way.)
I've seen $200+ million spent on a worse storyline, and I kinda like my plot.
A talking Tiger?- Try the Kntzee from Enterprise, which came from a Larry Niven novel.
Talking worm- try the Goa'uld from StarGate SG-1.
Mad Scientist-try Lex Luthor vowing to get that big Blue Boyscout.
It should be a comedy, but mostly, it should be serious. About hope, trust and ultimately love (between a father and his son)-the true power of Shazam!
(Gosh, I'm so misty, I'll have to leave.)