Conversation so far:
What was unusual about the look and style of Terry Gillium's films?
to create a surreal atmosphere of psychological unrest and a world out of balance, he frequently uses unusual camera angles, particularly low-angle shots, high-angle shots, and Dutch angles.
What is a Dutch angle?
CANNOTANSWER.
Is his style considered unique?
Gilliam's films have a distinctive look, not only in mise-en-scene but even more so in photography, often recognisable from just a short clip.

Question: Does he always use this style of filmmaking?
Self-contained rewrite: Does Terry Gilliam's always use the distinctive style of filmmaking?