Carrey, McCarthy split baffles <b>Hollywood</b>

Upon hearing about the Jenny McCarthy-Jim Carrey split, a longtime Hollywood studio honcho said, ''This surprised me almost as much as Jesse James cheating on Sandra Bullock !''That reaction is pretty universal in Hollywood as the breakup of the high-profile couple -- after a seemingly devoted five-year relationship -- had Tinseltown tongues wagging Wednesday.Here's what we know at this point ...