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There's a lot of treading water in this Icelandic true-life tale about local hero Gulli (an amiably slobbish Ólafur Darri Ólafsson) who was shipwrecked in minus-six-degree seas in 1984.

Hypothermia isn’t usually the stuff of drama (barring Titanic ), yet this CGI-free wave-fest rivets when at sea, losing its way on land.

Kate is a freelance film journalist and critic. Her bylines have appeared online and in print for GamesRadar, Total Film, the BFI, Sight & Sounds, and WithGuitars.com.