Thoroughly crap. Thoroughly enjoyed laughing all the way through it, from start to finish. Another one for “How the hell did they get the budget signed off for this?!”. Just how big is the interior of this submarine, did the designer develop Doctor Who’s TARDIS technology? Have they ever seen inside a sub? And why does the outside of the submarine when they get out towards the end of the film look nothing like the models or the external stock footage of a surfaced sub? All just laughably bad!