Review of Open Water 2: Adrift

I sat watching this movie intently from beginning to end. It was quite gripping and I liked the fact that little-known, albeit highly credible actors were used. I didn't realise until I visited IMDb that it was in fact Open Water 2 (Sky just listed it as Adrift). Open Water (1) is one of those movies I have long intended watching but just never got round to. I will make a point of watching it now as I thoroughly enjoyed the sequel. My only gripe was the ambiguous ending. One minute you're led to believe no-one made it as the fisherman is shouting "Ahoy" with no answer apart from the crying baby. The next minute its as if you're shown an alternate ending with the heroine aboard the yacht with her rescued 'ex-friend' sprawled out on deck. Confusing.