The Circa '21 Dinner Playhouse's Singin' in the Rain will have you laughin' at clouds, no matter how dark the weather. The 1983 musical is based on the beloved 1952 film, with its screenplay (and the musical's book) by Betty Comden and Adolph Green, and Nacio Herb Brown and Arthur Freed writing music and lyrics for most of its tunes, many of which are borrowed from 1920s and 1930s films (by MGM, natch, which concocted this film). Thus, the show is in many ways a jukebox musical, and Circa '21's production uses the 2012 revival's script, which is a pared-down and shuffled version of the original.