Factual error: When Tom calls Hannah from New York (and she is in Scotland) there is still bright daylight in New York. When Hannah answers she says it is 3am in Scotland. With a time difference of only 5 hours, this would mean it would be 10pm in New York and therefore dark.

Continuity: The range rovers used to transport everyone to the wedding, or in Tom's case to wherever he was going to catch his plane, share an identical license plate number. Two different places but same id?

Factual error: The scenes shot in Scotland are supposed to take place on the island of Skye - which is off the west coast of Scotland. However, when the bridesmaids take the ferry across to the island, the ferry reads 'Fraserborough' - a town located along the east coast of the mainland, several hundred miles away.

Continuity: When they are all going to the wedding in the black SUVs there are three of them, driving side by side on the road. Yet in the next shot there's only one, then back and forth until they arrive at the church where there is only one where the bride gets out and everyone else greets her even though they were all arriving together.