Valley Girl sisters Regina and Samantha go to the movies one night to get out of the house, and emerge to a desolate Los Angeles. A comet has passed through the earth's orbit, and everyone exposed to it was reduced to piles of red dust. The girls cope with the tragedy with a massive shopping run through the empty mall. Some of the citizens were only indirectly exposed, and they're now flesh-eating zombies — a terror Regina and Samantha cope with through the cool detachment of teenagers who care only for shoes, clothes and full-auto firepower. Thom Eberhardt's 1984 cult classic Night of the Comet is a surprisingly stylish, funny romp through the aftermath, and it stars Catherine Mary Stewart as Regina. The Webster Film Series Strange Brew division shows Night of the Comet at 8 p.m. tonight at Schlafly Bottleworks (7260 Southwest Boulevard; www.schlafly.com). Admission is $5.