ROAR: LIONS OF THE KALAHARI

Tim Liversedge's 40-minute IMAX film is basically a giant version of a nature special. Not that much happens at the centerpiece waterhole: Zebras, giraffes and elephants make their cameos, but most of the time we're watching jittery antelopes skirt around things as two lionesses practice their pouncing.  Even during climactic fight scenes it's hard not to feel that the large-screen format is more effective at iconic sunsets over the landscape, overhead views of herds on the move, and some beautifully lit nighttime silhouettes set against a starry sky. Still, the magnificence of the animals speaks for itself, and if it's straight-up lions you want, you can't get much better than this. Rangos Omnimax, Carnegie Science Center (LB)