Video: Editing is Everything Harry Potter but in 7 Different Genres

My last year of high school I had a group music assignment to take a film clip and change the mood by changing the music. That's the idea behind Editing is Everything. She sometimes uses similar 'genres' (like noir, crime, thriller) where the mood doesn't change that much, but it's still fascinating seeing the different ways music affects films and how different movie trailers are cut.