Coachella: 20 Years in the Desert is a documentary released in 2020 that looks back on two decades of the Coachella Valley Music and Arts Festival. The film presents legendary performances and behind-the-scenes stories that shaped the festival, featuring exclusive footage, interviews, and key acts from various years of the event. It captures the festival's origins, early years, growth, and its significance in music and arts culture.

If the query "coachella 20" refers to the festival's 20th anniversary or the documentary, these details highlight its history and impact since its founding in 1999. Let me know if more specific information about the 20th anniversary year of the festival or the documentary is needed.