All About America: Top Halloween Costumes of 2014

Young models wear two of 2014's hottest Halloween costumes, (from left) Anna and Elsa from Disney's "Frozen" at a Disney Halloween Fashion Show on Oct. 1, 2014, in Glendale, Calif.

Olaf from Disney's "Frozen" is another of Halloween 2014's most popular costumes.

Angelina Jolie as Maleficent, one of 2014's most popular Halloween looks. (Greg Williams/Disney)

Groot from "Guardians of the Galaxy" makes 2014's list of most popular Halloween costumes. (Marvel Cinematic Universe)

Black Widow (far left) and Captain America (center) in Marvel's "The Avengers" are popular costumes in 2014. (Marvel)

The Assassin's Creed video game has spawned one of 2014's favorite Halloween costumes.