Previously there was a 5-episode anime Planetarian, about a man meeting a talkative robot girl who works at a planetarium, waiting for visitors and her prior human coworkers to come back for more than 30 years, not knowing her city is mostly destroyed and there is no human there.  Through this encounter the man finds a new meaning in his life in this lonely world.

Planetarian -Hoshi no Hito- (Blu-ray release 2017-2-24) is a movie that includes all the important parts of the anime and extends it so we learn what happens after the anime.  I do not want to spoil the plot, but it needs to be emphasized that this is fundamentally a positive movie, despite the apocaplytic world, the ending(s) and the tearjerking parts, as compared to Ex Machina (2015), also about men and a robot woman, which is well rated but its ignorance of the laws of robotics and negativity leaves a foul taste for me.