Palm Springs (2020) review

At the wedding party for her sister Tala (Camila Mendes), Sarah (Cristin Milioti) gets drinks with Nyles (Andy Samberg), starts fooling around with him, and then ends up going into a hole in a cave that acts as an "infinite time loop" and both she and Nyles have to keep reliving the same day infinitely.  Comparisons to Groundhog Day are inevitable, and the movie feels a pressing need to keep explaining itself along the way - Nyles uses indifference to dodge deeper feelings, Sarah tries to rationally figure out how to escape - like it was written by someone who read one book by Deepak Chopra and now thinks he's a guru ... except the two leads are marvelous together, with immediate chemistry, and it does have a rather warm message about dedication.  The ending gets flubbed a little: instead of realizing change comes from within - like Bill Murray's character - they turn to studying quantum physics to blow themselves up, which speaks volumes about the world today versus 1993.