There are some films that just completely fall away from memory except for a single scene that seems to define them.
Is this just a thing with me or are other people having this experience?
In no order:
Taxi Driver - the rescue scene with the miming of the finger guns
Oldboy - the confrontation scene with the tongue.
The Passion of Joan of Arc - Joan's face
Day Watch - the car driving across the side of the hotel
The Matrix - Neo in air about to smash into Agent Smith