I can't speak for the film's accuracy, because I simply don't know. I haven't read or researched enough about the Libya conflict to have a real opinion, but it certainly does paint a different picture than what we're used to hearing about it.
edit: keep in mind that I'm fully aware that this film
only shows the conflict from the rebel point of view. Either way, it's not often you get to see something like this from the inside, even if it is totally one-sided.