Audio problem: When Del invites all his mates round to his flat after the reunion, they start to go through a number of photos. When Del shows them the photo of the school football team, Trigger says, "There's that Italian kid, good player, what was his name?" But if you look closely, Trigger's voice has been dubbed over. Instead, he says, "There's that Italian Prat."
Revealing mistake: When Slater asks if the baby will be named after him and Rodney gives his answer, camera shows Del and you can quite see David Jason doing his best not to burst into laughter because of Rodney's answer.
Suggested correction: After Rodney gives his answer, the camera cuts to Slater, and then back to Del. He isn't close to bursting into laughter. He only laughs when he and Rodney stare at each other after Slater has left the pub, which was certainly the original intention.