What's new and/or interesting in Philly theaters this holiday weekend (all of these movies open today). Most Likely to Rule: I'm Not There - An "unconventional" biopic of Bob Dylan wherein six different actors play him at various stages in his career. Said actors include Christian Bale, Cate Blanchett, Richard Gere, and Heath Ledger. Also in the cast (but not playing Bob) are David Cross, Bruce Greenwood, and Julianne Moore. We could see how this......