 Later, when Alan is "humping" Joanna, the scene suddenly becomes a crane shot.This is because the crew at the time had a crane camera after they had finished filming the final scenes in series 2 where Alan, Joanna and Martin are teetering over the edge of a cliff in the stolen camper van.The camper van scenes were the hardest to shoot, especially the scene where the van explodes, as this had to be done in one take.