Place all of cinema's truly awful performers end to end, and they would stretch from here to the third moon of Pluto. (Pluto, by the way, is adorable, and a better actor than, say, Keanu Reeves.) Sometimes, however, badness is goodness. And without "bad" performances, the following three movies wouldn't have been as good as they are: "Cabaret": In her Oscar-winning performance as the talent-free Sally Bowles, Liza Minnelli was playing someone whom even Bowles's creator, Christopher Isherwood, described as "one of those individuals ... (more)