If you're a Windows user, Lightworks (
http://www.lwks.com/) has been used in commercial films and has a free version. I can't say more than that because it's not going to support my OS until later this month.
Openshot, (
http://www.openshotvideo.com/), I've used before. It was easy enough.
Maybe someone with more video editing experience will have some proper suggestions for you though. I have edited like 3 videos ever.