Continuity: When the bus crashes, the aerial shot shows no garbage by the rear door. In the next angle it's full of trash.

Continuity: When Seldom is explaining the symbols to the cop and Martin, he draws an open circle. In the following angles the circle is closed.

Continuity: When the bus skids all the passengers that were inside 2 seconds before disappear.

Continuity: When Yuri is walking on the table, the objects he kicks appear/disappear and move around between shots; sometimes they're closer/away depending on the shot.

Continuity: In the scene where Martin is studying in the library, and Beth goes, confronts him and then runs away, when Martin starts to run after her, he goes back to his seat to fetch his rucksack and starts running again after Beth. By the time he leaves the library running out the door, he no longer has his rucksack.