Continuity mistake: After young Donna and Bill are swimming back to the boat, Donna climbs up into the deck wearing a full face mask. In the long shot we see her turn around still wearing the mask. In the very next shot she sits down but the mask has vanished completely.
Continuity mistake: Young Donna has brown eyes. Older Donna has blue eyes.
Continuity mistake: When Donna begins to sing "Andante, Andante, " the camera shows Sophia, Bill's great-aunt and owner of the farmhouse, turning to the bar counter and setting down a rag. A few shots later, she is turned back to her original position and the rag is not there.
Continuity mistake: When Harry is tied to the chair - his method of problem solving - there is a small boat tied up directly outside the window. Seconds later when he falls out the window into the water, the boat has vanished.
Continuity mistake: When young Sam is rowing young Donna the starboard oar shifts position from aft of the oar pin to fore, then back aft.
Continuity mistake: When Sophie greets Rosie and Tanya at the dock and hugs them both, Sophie's arm is under Rosie's arm in the shots facing the boat, but in the shot facing Sophie her arm is around Rosie's shoulders.
