Triangle (2009)

Revealing mistake: Whenever normal Jess fights with sackhead Jess it's obvious that it's a man. Take note of the different and larger hands in particular.

Jack Vaughan

Driver: Are you all right?
Jess: Who are you?
Driver: I'm just a driver... No point trying to save the boy, there's nothing anyone can do to bring him back. So... Can I give you a ride?
Jess: Yes. Take me to the harbor.