British artist Ralph Steadman rose to prominence in the 1970s with his stirring images on world politics and social injustice. But perhaps his true career-defining moment took place in 1969, when he was paired with writer Hunter S. Thompson to cover the Kentucky Derby. Working together, the sober Brit and wildcard American formed a personal and creative bond, and when they combined their talents—Thompson’s prose and Steadman’s drawings—they created an energetic, personal and irreverent form of commentary soon after dubbed gonzo journalism.

For No Good Reason offers a look inside the radical illustrator’s home and history, prompted by actor Johnny Depp’s visit to Steadman’s studio. With a blend of animation, archival footage, and interviews with admirers including Monty Python’s Terry Gilliam, director Charlie Paul skillfully navigates Steadman’s life and inspiration.