Through early November, Landmark's E Street Cinema is hosting weekend midnight screenings of camp and cult classics. This weekend brings Albert Magnoli's 1984 Purple Rain starring Prince as "The Kid" in a semi-autobiographical film about a tortured musician. Apollonia and Morris Day also star in this film bolstered by the kind of popular soundtrack ("Let's Go Crazy," "When Doves Cry," "Purple Rain") that could turn the screenings into de facto sing-alongs. Friday, Oct. 22, and Saturday, Oct. 23, at midnight. Landmark's E Street Cinema, 555 11th St. NW. Call 202-452-7672 or visit landmarktheatres.com.