Revealing mistake: When Del and Jumbo come into the Nags Head to discuss business, Del asks Mike for an Australian lager for Jumbo. Mike lists other Non-British lagers as a choice. When Jumbo says he'll have one of them, Mike produces a pint in less than 10 seconds, certainly no time to have poured a pint.
Continuity mistake: When Del & Rodney are talking to Andy on the hill just before Del goes hang-gliding, look at the first shot of Andy. Over his shoulder, the Trotter van is in full view. The shot then turns to Del & Rodney and when it goes back to Andy, there is no van.