Episode Six - S3-E6
Factual error: Dave and Nessa's wedding is meant to be on 13th June and at the end supposedly 6 months later Nessa, Gavin and Stacey are sat on the sea wall in beautiful sunshine in summery clothes when it should be middle of December.
Character mistake: In the final show, when Nesa and Smithy are getting married, Smith states his name as Niel Noel Edmund Smith, but that is actually his son's name, a.k.a. Niel the baby.
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