What is the best software to use for making home made documentaries/movies?

Question by Brido: What is the best software to use for making home made documentaries/movies?
I’m looking for something which would make it easy to edit, add graphics/backgrounds, and over dubbing, with, if possible, a blue/green screen functions.

Best answer:

Answer by Ned
I am pretty sure that you will find the right information on this link:
http://www.helium.com/knowledge/2809-best-free-movie-making-software

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