Like all non-Hamptons happenings this month, last night's screening of Delirious at the Tribeca Grand was pretty low on star power. But Tom DiCillo's comedy stars Steve Buscemi as a star-stalking paparazzo, and the phalanx of real-life photogs in attendance hammed it up with lots of elbow-angling and shouting when DiCillo, co-star Callie Thorne, and a few Culkin brothers showed. Thorne, who said she gets her paparazzi-handling tips from Parker Posey, confessed that Denis Leary regularly gets stalked by photogs on the set of Rescue Me, where she plays his love interest. "We're trying to shoot a scene that's very serious and dramatic," she said, and "all of the sudden out of the bushes a paparazzo jumps out. We all break and laugh, but Denis gets cranky. That's probably the most crazy I've seen people get — around Denis." (Who knew?)