The Matrix
The Matrix is known for, well, many things, but among them is introducing Hollywood with the special-effects technique of ‘bullet time’, when hundreds of cameras are surrounding the actor to capture a scene, creating a movement effect around a frozen object, in order to produce a slow-motion effect.
Another method used in the Matrix saga was using real photographs of buildings, people, etc. as textures for 3D models. This might not sound too impressive, but keep in mind that the film came out in 1999, before smartphones and all the technology we take for granted today.