Flashback: Watch Gilda Radner Hilariously Spoof Patti Smith on 'SNL'

Last week, the producers of Robert Mapplethorpe biopic Mapplethorpe revealed that Girls actress Zosia Mamet will portray the late photographer’s close friend Patti Smith in the film. She will not be the first actress to play the punk singer onscreen, though, as actress Mickey Sumner played Smith in the 2013 film CBGB –…