Myself and a few other online know-it-alls — Defamer‘s Mark Lisanti, MCN’s David Poland, Tom O’Neill, MSN’s Gregory Ellwood, Oscar Watch’s Sasha Stone — share predictions with L.A.Times writer Deborah Netburn about the summer films most likely to be the biggest hit, the biggest flop and the biggest sleeper. My calls (in that order): The DaVinci Code, Poseidon and Snakes on a Plane.