Continuity mistake: In Bridget Jones' Diary, Mark says that he was 8 and Bridget was 4 when they would play in the pool together. but in Bridget Jones' Baby Mark sets up the compatibility profile and his age is 50 and Bridget's is 43.
Continuity mistake: In Bridget Jones' Diary, her birthday is Nov. 9th. In Bridget Jones' Baby, her birthday is May 9th.
Continuity mistake: After the baby is born and Bridget is holding him in her arms, the baby is shown bare headed. After Pamela arrives, the baby is suddenly wearing a hat on his head.
Suggested correction: There could be quite a time lapse before Pamela enters. It is not necessarily the very next second.
Continuity mistake: When Bridget is dancing at the beginning with wine glass in hand, on the way to the bed she's seen carrying a wine bottle, then it's back to the wine glass.
Continuity mistake: During the contractions at the hospital, right before Bridget grabs Mark's hand, the tissue in Jack's nose becomes shorter, only to grow in the next shot.
Continuity mistake: Bridget falls in the mud with her arms under her chest, but in the following shot they're extended. Her suitcase and bag keep changing positions between shots too.
Continuity mistake: When Bridget is at the festival right before she falls on the mud, while she walks to pick a flyer a strand of hair falls around her neck, which disappears in the next angle.
Continuity mistake: When Bridget and Miranda arrive at the festival, Miranda dances close to foam floating on air. When the shot changes the foam has increased dramatically.
Continuity mistake: When Bridget is in labor she bites Mark. Cut to a close-up of his head sunk in pain, then back to the wide angle and his head is still raised.