U.S. director Greg Camalier’s Muscle Shoals was voted the most popular documentary by an estimated 180,000 people that attended the 20^th annual Hot Docs Canadian International Documentary Festival, organizers said Monday.

The 11-day event gave the audience award to Camalier’s portrait of a tiny backwater Alabama town and its huge impact on popular music. The second most popular film at Hot Docs was another American film, Steve Hoover’s Blood Brother, where the director follows his friend’s sudden move to India to care for HIV-positive orphans.

Hot Docs also said Monday that, of its 418 public screenings, 157 went to rush seating.

The Toronto festival also reported that its industry programming was attended by 2514 delegates, including official delegations from China, Germany, Japan, Nigeria, the Nordic Region, Poland, South Africa and the U.S.

Photo from Muscle Shoals:Fame Recording Studios – During the 60s and 70s in particular, Fame became one of the most prolific studios of its time. The music recorded there, such as “I’ll take you there” and “Mustang Sally” continues to influence the world of music today.