Stumbling Through Tuesdays, a comedy/improv/ gameshow/sketch entertainment behemoth, sprung from the brain of Jason Dockins, will have a preview show tonight at Memphis on Main at 7:00 p.m. Featured among the insanity will be the awesome “B– Movies,” in which Stumbling Through Tuesdays performers (Stumblers?) finish a terrible film live, “making bad movies badder.” For more information, check out the Stumbling Facebook page.