See more of the story

Hollywood movies have traditionally been a major source of inspiration for Halloween costumes and 2014 is no different.

Between "Frozen," "Maleficient," and a score of beloved Marvel Cinematic Universe characters, the studio holding the most sway over the spooky holiday is clearly Disney.

See photos: Halloween in Hollywood Costume Contest – You Be the Judge! (Photos)

"Frozen," in particular, is expected to be the spooky holiday's biggest draw. One study showed 1.2 million people were on the hunt for outfits inspired by the 2013 animated hit, with the characters Elsa and Olaf getting the most searches. Zombies are also expected to be a popular choice, thanks in part to AMC's highly rated series "The Walking Dead."

Also read: Halloween Viewing Guide: 19 of the Week's Most Hauntingly Awesome Offerings

There's also a good chance your Halloween party will have at least one person dressed up like a Marvel superhero, with "Guardians of the Galaxy's" Groot and Black Widow expected to be popular selections.

So, in case you still haven't figured out what you're wearing this year, here are Hollywood's 9 most popular costumes: