If you ask Tom Hanks, the main draw of his new movie, “Angels & Demons,” is the puzzle, the universal mysteries the film tries to explore.  As symbologist Harry Langdon, Hanks spends much of the flick solving puzzles and making sense out of various clues, and he feels like the audience gets to solve these puzzles right along with him. (CLICK ON THE MEDIA BAR BELOW TO HEAR TOM HANKS)