21 Landings is a looped video of some sort of flying animal—Is it a monster? Is it entirely biological?—trying to land on the surface of an alien environment. The stop-motion animation is from the creature's perspective, so all we can see is something leglike, and all we can hear is a whooshing noise. This is a singular opportunity to wander into a movie theater—it plays all day, for free—and sit in the dark with a few other people and contemplate something not of this world. (Northwest Film Forum, 1515 12th Ave, 829-7863. 10 am–5 pm, free.)