LOS ANGELES—Director Harald Zwart's commentary track on the recently released One Night At McCool's DVD trails off after 20 minutes, sources reported Tuesday. "This scene, I remember... we set things up to... look right and all, but I, well... you know..." Zwart said some 18 minutes into the track. "This, uh..." The remainder of the commentary features long stretches of silence occasionally broken by coughing or throat-clearing.