Stillman, a heartbroken physics student, builds a time machine when his girlfriend breaks up with him. Going back in time, he attempts to save their relationship by fixing every mistake he made—while dragging his best friend along in the process. Asa Butterfield, Sophie Turner, Skyler Gisondo, Will Peltz, Aubrey Reynolds, Jillian Joy, Joseph Park Added on Amazon Prime 2023-08-04. Youtube Trailer