“Antibirth” (*1/2 out of four) was an anti-watchable sci/fi slog about a partier (Natasha Lyonne) and her friend (Chloe Sevigny) who live in a desolate community full of drug-addled psychotics and complications arise when she wakes up after a night of heavy partying and is unsure if she’s pregnant or the carrier of a strange illness. Both Lyonne and Sevigny seem to be aging well since their 90’s heyday and it’s nice to see Meg Tilly back on screen again after a lengthy absence but this stupid and ugly melodrama doesn’t know what to do with any of them. Some trippy visuals are this movie’s only asset; it doesn’t so much end as stop, but you won’t be complaining.