The shot of a lion attacking Dwayne Johnson in slow motion is worrisome, to say the least. There’s no room in my life or my head for CG that looks this bad. It’s suddenly conceivable that Brett Ratner‘s Hercules (Paramount, 7.25) might be as bad as John Derek‘s Tarzan. Two-thirds through this caveat emptor trailer Johnson is wading chest-deep through a swamp and is suddenly yanked under the surface by a slimey super-snake, which soon after roars like a T-Rex. The swamp-yank thing is half Jaws and half R2D2 being swallowed by a Dagobah serpent in The Empire Strikes Back. Q: “Now tell me…who…are…you?” A: “I…am…Hercules!!”