The Leftovers

Season one covers the length of Tom Perrotta's novel 'The Leftovers', meaning season two and three are entirely new material.

The character of Kevin Garvey in The Leftovers novel is the mayor of Mapelton, New York, not the Chief of Police as he is in the show.

After filming the sixth episode, production shut down for two weeks. According to HBO this was done to give the creative team more time to prepare the last episodes, because rumor has it that it was so co-creator Damon Lindelof would make changes, because the network wasn't happy with aspects of the show so far.