Audio problem: Jordan and Donnie are talking about Jordan's money. Jordan then says "technically 72 thousand last month. Something like that." When he says "something like that", the camera is very close to Jordan's head with Donnie in the background. You hear the words "something like that", but Jordan's mouth is not moving, it is closed. (00:23:00)
Audio problem: In several scenes, Sandra Bullock used radio equipment in efforts to call for assistance. There is a sound made by vintage, mechanically tuned radios called "heterodyning" that results in a squealing, variable frequency sound in the speaker. While heterodyning added a degree of drama to the scenes in "Gravity", contemporary radios operate on a different, highly stable technique for tuning, and do not produce heterodyne sounds. (00:13:15 - 00:41:00)
Audio problem: When the Police play "Roxanne" for Hilly, the actors are just lip-syncing to the studio version; though his laugh has been edited out, the atonal piano chord at the beginning of the song, a now-famous gaffe from when Sting accidentally sat on a keyboard during recording, still remains.