Gad, who stars in the new film "The Wedding Ringer," discussed his friendship with "The Wedding Ringer" co-star Kevin Hart, with whom he crashed an Indian wedding while promoting the movie.
Gad, who has starred on Broadway in The 25th Annual Putnam County Spelling Bee and The Book of Mormon, discussed "Frozen" with O'Donnell, who challenged him to a game of "So You Think You Know Olaf." During the game, the two competed to remember the character's lines in clips from the film.
Watch the interview and game below.
