After serving as source material for last year’s brilliant Blue Jasmine, Tennessee Williams’s Pulitzer-winning play returns to the big screen at SIFF in two versions: 4:15 p.m. brings the classic 1951 film version, directed by Elia Kazan and starring Vivien Leigh and an astounding Marlon Brando, and 7 p.m. brings the broadcast of the National Theatre’s acclaimed 2014 stage production, set in the present day and starring Gillian Anderson as Blanche DuBois. Keeping Streetcar forever relevant: its subjects (sex, money, family, mental illness) and Williams’s beautiful script. (SIFF Cinema Uptown, 511 Queen Anne Ave N, siff.net, 4:15 and 7 pm, $9 film/$20 stage production, through Oct 9)