We have lift off! (youtube link)
A fun, easy bit of video-trickery.
It's easy but takes a lot of time and patience... the result is worth it though!
Record a clip of someone jumping. Get them to jump around a room or across a park or garden.
Using a movie editor, capture stills as your subject is at the top of each jump.
Using animation software, like windows movie maker, put the still together into a short film.
Hey presto - your subject is flying!