Continuity mistake: Although this episode takes place during a single day, Boyce and Mac's hairstyles change from scene to scene.
Continuity mistake: In "Caroline's First Day." When Martin is on the computer looking up what his old schoolmates had achieved, in one shot Boyce has his arm around him, in the next shot his arm is by his side.
Continuity mistake: When Rachel, Kim and Karen are sat outside eating lunch Karen mentions her friend having made her sandwiches. The satsuma segment in Kim's hand switches from one hand to the other without moving her hands.
Continuity mistake: When Guy is handing Caroline his key, there is a moment when Caroline's green hair clip disappears from her hair during a close-up, but it then reappears seconds later.
Continuity mistake: We see Martin call his mother three times. On two of those occasions we see him dial her number. But the number that he dials is completely different on both occasions.
