A proper movie marathon deserves films that build on each other, each one raising the stakes a little, keeping the session alive well past the point you planned to stop. The twist in a great drama doesn't rely on misdirection, it arrives from the logic of the characters and feels inevitable in retrospect, which is the harder thing to pull off.
There is nothing worse than picking the wrong movie for the mood. This curated list of drama films for a movie marathon takes that risk off the table. Every pick here is with a shocking twist ending, tried, tested, and worth your time. Happy watching.