A 21-minute Frozen short that precedes the new Disney/Pixar film Coco has left US audiences both baffled and enraged, with claims that the overlong musical short film has caused audience confusion and demands for refunds.

Olaf's Frozen Adventure, a sort-of sequel to the inescapable 2013 blockbuster, fills the space of the traditional "Pixar short" which precede their releases. But unlike typical Pixar shorts, Olaf's Frozen Adventure was originally conceived as a made-for-TV special, with the length that tends to imply.

As a result of the short being placed in front of Coco, Disney/Pixar's Mexican Day of the Dead fantasy film, audiences have taken to social media with claims that children are loudly complaining about the film's length and its four original songs, some of which are reprised throughout the short.