The fighting and the beating between the male characters of this film is way out of what someone would expect under a situation of food scarcity. I mean I understand tension arising cause of the sudden and abnormal situation that the group is facing but that goes way out of that. Same goes for all the swimming between the 2 islands which they have more than a mile distance. Swimming a distance like that in an open ocean is a very exhausting activity even for athletes. Same applies for the sexual encounters that happen. Overall a cheap production that is hardly convincing.