The Mammoth Film Festival (MammothFF) is an annual film festival held every February in Mammoth Lakes, California, United States. Founded in 2018 by Tanner Beard and Tomik Mansoori, the festival serves as an international competition showcasing the work of independent filmmakers, actors, directors, writers, and producers. It features World Premiere Feature Films, Episodic Television, Documentaries, and Short Form Narratives, alongside interactive panel discussions, red carpet events, global press galas, and a marketplace.