In the US version, the narrator states, "Every 10 cubic feet of 'berg is a ton of solid ice". The actual density of ice is about a quarter of that. In the UK version he says "Every cubic metre of 'berg is a ton of solid ice", which is a lot closer to the actual density of ice 0.92 g/cm³, equivalent to 0.92 tonnes, 0.90 UK tons or 1.01 US tons per cubic metre.