Continuity mistake: When John is playing chess, we see him make a move, followed by the computer making a move. It's now John's move, but when he makes his move, all the pieces are in different positions. The screen is in shot all the time, and we don't see him make another move explaining the moved pieces. (00:28:00)
Visible crew/equipment: When John looks through the binoculars at the start, it reflects 2 big white squares which, considering they are in the jungle looking at a blue/rust coloured building, it appears to be part of the filming equipment. Perhaps a light screen? (00:06:20)
Chosen answer: None of the main characters died in the plane crash. Many died on the island after the crash (Jack, Charlie, Sun, Jin, Daniel, Juliet, others), some lived on the island for an apparently long time after the crash (Hurley, Ben, Bernard, Rose) but some lived lives off the island after the crash (Sawyer, Kate, Claire, Miles, Aplert, and Lapidus). Remember that Christian tells Jack that "time has no meaning here," (in Purgatory). When everyone meets at the church, they are at the end of their lives however long that may have been and will now "move on" together. They look like they did on the island because that is the way they best remember each other.
Guy
That has to be the clearest explanation of the ending I've ever read.
Ssiscool ★