Discovery+ has acquired the worldwide rights to “Citizen Penn,” a documentary about actor Sean Penn’s humanitarian work in Haiti following the 7.0-magnitude earthquake that devastated the region in 2010.

The film is written and directed by Don Hardy (“Pick of the Litter”) and followed Penn over the course of 10 years as he and a team of volunteers set up a long base to bring aid to Haitians, including through his non-profit organization called Core. Discovery+ plans to release “Citizen Penn” on its streaming service beginning May 6.

The documentary also features an original score by songwriter Linda Perry, as well as an original song called “Eden (To Find Love)” performed by Bono and co-written by Bono and Perry.

“Citizen Penn” ​chronicles the moment Penn and his team of volunteers landed in Haiti, just days after the earthquake struck, and the ten years since. The film offers viewers an intimate, honest, and...