Yes I agree with whats been said here, there's more to this story than is being shown. For the life of me I couldn't figure out why a fully committed JW would agree to portray themselves in this light in the first place. Did you notice the signs around the house? The list of behavioural rules on the wall and the "STOP" labels on the CD cabinet? I think the parents were pretty controlling in a definate JW way. In fact the whole thing gave me the impression the parents were recent faders, just beginning to extracate themselves from the congregation. Why else would they go public on the mistakes they've made in bringing up their daughter, and why paint themselves so "worldly" and encourage their daughter to be the same?
The first rule of any JW is to always portray JW's and the Society in a positive light. This couple have broken that fundamental rule bigtime and I suspect that the repercussions from the Kingdom Hall were swift.
Unless of course the Society sanctioned the film for an "aren't we normal?" PR exercise.