The Pitch: An extinction event has made the Earth a very empty place, so when a solar-powered “smart” buoy ( Kristen Stewart) powers back on after many years, it doesn’t have anyone to make contact with. Until, that is, it wirelessly connects with a passing orbital beacon ( Steven Yeun) that happens to be serving as “humanity’s tombstone.”

Kristen Stewart almost saves “Love Me.” To see her here — that is, to see her comfortable in her own skin, her intense way of listening and the freshness of her reactions — as well as to hear the idiosyncratic truth of her line readings — is to be confronted by an extraordinary screen presence.