The Bourne Supremacy really sort of defines the Shakycam genre.
Sequel to the Bourne Identity, it got a new director in Paul Greengrass, who really went for the jugular in realistic fight and chase sequences. This meant a lot of rapid cuts, hand held shots, action entering and exiting the sides of the frame. Very frenetic, very violent, very nauseating for those who are susceptible.
Even non-action scenes were often hand held, going for the gritty documentary style of realism. Immersive for some, but not for those who have to spend the movie with their head in their hands.
This is our first F. Unwatchable for sensitive people, either close your eyes for a good chunk of the movie, or grab the Gravol.