Why did the chicken cross the road? Because the movie studio was on the other side. But it's not just the chickens that have flown the coop and passed their screen test. This summer, mutants, a nude invisible man, and the storm of the century are right on their heels (assuming chickens, of the stop-motion style in any case, have heels). That's right, it's summer moviegoing time once again. Herein LD looks at a few of the season's offerings, from the high-tech (X-Men, Hollow Man) to the low-tech (Chuck & Buck), and from the foul-weather (The Perfect Storm) to the just plain fowl (Chicken Run). Cluck.