The film Pride was named best film at Sunday's British Independent Film Awards.

Co-stars Andrew Scott (Sherlock) and Imelda Staunton (Harry Potter films) won the best supporting actor and actress prizes, bringing the film's total awards to three.

(Related: Sherlock's Andrew Scott describes coming out as “really lovely.”)

Set in the early 80s, Pride tells the true story of a London-based group of gay and lesbian activists who travel to Wales to help support families struggling amid a miners strike. The unionists and activists soon discover that together they can stand taller. (Watch the film's trailer.)

“We're getting reports from up and down the country of audiences standing up and applauding,” said Pride director Matthew Warchus in accepting the night's top prize. “That doesn't really happen in British cinemas. It's just extraordinary. It's a real tribute to the source material.”