MOVIES WHERE IT'S EITHER TIME TRAVEL OR MENTAL ILLNESS, YOU DON'T KNOW ➕➕➕

There are certain movies in which you can't tell if a character is mentally ill or a time traveler. This is my favorite genre of movie. Tell me about
  1. Happy accidents.
    This weird Vincent d'onofrio and Marisa tomes weird ass rom com epitomizes the genre
  2. Safety not guaranteed
    A recent edition to the genre, and pretty good.
  3. Take shelter
    Ok, so michael Shannon isn't a time traveler per se, but there is a question as to whether he can see into the future.
  4. Sound Of My Voice
    Is cult leader Brit Marling really from the year 2054, or does this movie have an unsatisfying ending?
    Suggested by   @tothemaxxx
  5. 12 monkeys
    Suggested by   @gilbaron
  6. Shutter Island
    Suggested by   @aedan