“YOUNG ADULT” (2011-93 min.). Novelist Mavis Gary (Charlize Theron) returns to her small hometown in a misguided attempt to relive her glory days and steal her high school sweetheart Buddy Slade (Patrick Wilson) away from his wife. Screenwriter Diablo Cody and director Jason Reitman also produced this comedy. Note: strong language! 7:30 p.m.