Here’s the trailer for One Night Only, which has got to be the dullest, least informative trailer I’ve ever seen. I wouldn’t even bother but for the fact that both Kristen Wiig (“SNL”) is in it, as is Garret Dillahunt, who is one of my very favorite character actors. The movie is “a romantic drama about two couples shifting sexual dynamics over one night in a folk music bar,” though God knows you wouldn’t know it from the trailer. Catchy little folk song, though. I don’t have a clue when it’s coming out; in fact, it’s so goddamn obscure, there’s not even an iMDB page devoted to it.