Are your pants itchy? Get yourself to the Grand Illusion and let 1934’s The Thin Man charm them right off. Starring William Powell and Myrna Loy as the most lovable high-functioning drunks-who-solve-crimes in cinema history, The Thin Man is a witty, wordy comic mystery so good it spawned a series of five sequels. But the first is forever the best. As Roger Ebert wrote in The Great Movies, “[William Powell] is to dialogue as Fred Astaire is to dance.” (Grand Illusion, 1403 NE 50th St, grandillusioncinema.org, 7 pm, $8, April 4–8)