Audio problem: Murph's dialogue doesn't sync with her mouth at the lines "you hate farming, Dad." (00:17:43)
Audio problem: Tom's wife coughs into her sleeve as the shot changes; when it switches to Murph's boyfriend, you can see her reflection in the window and she is not coughing. "How long have you had that cough?" he asks, and although she replies "A while," you can see in the reflection that she was originally filmed coughing again as a reply. (01:49:20)
Chosen answer: They do not still have gravity. Romilly is actually floating, but nothing is ever shown from behind his back, so the floating is gone unnoticed. In fact, during some shots of Romilly, you can see his feet floating behind him.
Casual Person