Hermione: [to Lupin] I trusted you! And all this time you've been his friend!
Harry Potter and the Prisoner of AzkabanFrodo: [to Gollum] There is no promise you can make that I can trust.
The Lord of the Rings: The Two TowersGil: I'm jealous and I'm trusting. It's cognitive dissonance. F. Scott Fitzgerald talked about it.
Midnight in ParisFezzik: [to Inigo regarding the man in black] You be careful. People in masks cannot be trusted.
The Princess Bride