Shank (2009)

Teenage gang member Cal, hides his sexuality from his fellow gang members despite their often violent dislike of anyone that isn't the same as them, be they unsuspecting shoppers, foreign students, gays, etc. When his world collides with Olivier, a student he rescues from a pointless beating, he encounters a lifestyle that presents as many new experiences as it does obstacles.

Unfortunately the movie Shank is not yet available on HBO Max.