Frodo Baggins: The Rock - because he is in every movie
Gandalf: Kevin Hart The wise wizard shrinks to a fast talking comedian with a high voice
Aragorn: Adam Sandler - The noble king now delivers heroic lines with goofy humor and lazy charm.
Legolas :Danny DeVito - The graceful elf archer turns into a short, grumpy, and bumbling character, he is so funny in always sunny
Gimli: Tom Cruise - The stout, rugged dwarf is now a clean-cut, intense action hero who does all of his own action stungs
Samwise Gamgee: Nicolas Cage The loyal Sam becomes wildly unpredictable with intense outbursts.
Saruman: Jim Carrey The menacing dark wizard is now a rubber-faced comedian with exaggerated expressions.
Galadriel: Megan Fox - The ancient elf queen is transformed into a modern, glamorous figure
Elrond: Mike Myers - The stern elf lord becomes a quirky, comedic character with a wink
Gollum: Zac Efron The twisted creature is now disturbingly charming and oddly attractive.
I think it would be an expensive but interesting cast for sure!