One of those cinematic moments that sticks out was the bullet-time scenes in The Matrix. Since then the technique has been used in a range of films, and in the past has involved multiple cameras, tracks, lots of tech and timing!
Now with just an iPhone, a piece of string and a plastic glider you can create some amazing videos. Though not as easy it sounds, did require a fair bit of thinking and experimentation. You can see the process in this fun video.