My opinion of that documentary is that it was mostly fair... Aside from incorrectly portraying the arabs as innocent victims, they should have shown the fact that the arabs were not forced to leave Israel, they left of their own volition. Unlike the Jews in arab countries who were involuntarily evicted from their homes, their belongings and money confiscated. I know this because a friend of mine in minyan is an Egyptian Sephardic Jew whose family lost everything in 1948.
Aside from giving that fantasy of 'palestinian nationalism' coverage, the video was a good explanation of how incredible Israels forces were at that time.