FILM: Castro Theatre celebrates Billy Elliot the Musical with a special screening of Billy Elliot the Movie, and featuring the cast of the musical in person before the show. Wear your tutu, and take part in the trivia contest for a chance to win tickets to the musical at Orpheum Theatre, among other prizes. The night is also a double-feature event, which includes a screening of The 5,000 Finger of Dr. T (1953), the only feature film Dr. Suess ever made. (6:30 p.m., Castro Theatre, 429 Castro Street)

MUSIC I: New York-based Pistolera bring their "rich sonic palette" to the Elbo Room tonight, featuring a rock/Latin/dance-inspired mash-up of polkas with cumbias, waltzes with dancehall, and ballads with electronica. Also featuring DJs Santero and El Kool Kyle (El Superritmo), and special guests Candelaria. (9 p.m., Elbo Room, 647 Valencia Street)

MUSIC II: FunCheapSF has the info on Desperado Orchestra, a collaborative group of performers, composers, and "generators of new thought" who blend world music-inspired acoustic and electronic elements to create "a new sonic interpretation unique to the American and world music." (9 p.m., 50 Mason Social House, 50 Mason Street)