Interstellar
For a movie as massive and entrancing as Interstellar is on original watch, it manages to retain a lot of the magic and spectacle on rewatch. Although the emotionally crushing moments of the film don't hit as hard the second time for me, the scale becomes almost more impressive the second time.
I know this movie has developed a reputation for being kind of corny (it is a Nolan movie after all) but I think the theme of love transcending reality really is quite beautiful and where it gets confusing for people towards the end with the relativity stuff I really have never found it too challenging. Still a great movie and one of the best of the 2010s, in Nolan's top 3 IMO.