All Hallows' Eve is a 2013 American horror anthology film edited, written, and directed by Damien Leone, in his feature film directorial debut. The film is presented as a series of shorts that two children and their babysitter discover on an unmarked videotape on Halloween night, all of which feature a homicidal clown named Art the Clown. The film stars Katie Maguire, Catherine Callahan, Marie Maser, and Kayla Lian, with Mike Giannelli as Art the Clown. It incorporates footage from the 2008 short film The 9th Circle, as well as the 2011 short film Terrifier, both of which were also directed by Leone and featured Art the Clown.

All Hallows' Eve was released direct-to-video by Image Entertainment on October 29, 2013, and received mixed reviews. The film was followed by a standalone anthology-sequel All Hallows' Eve 2 (2015), which features segments by different directors. The character of Art the Clown would later be feature as the main character of the Terrifier franchise, where the character featured in the titular film (2016), its 2022 sequel, and a third film in post-production. Each of these installments were written and directed by Leone.