(at around 1h 24 mins) Daniel Cleaver's hair goes through at least three style changes as he speaks with Mark Darcy from the fountain during the fight scene.
(at around 8 mins) Back at her workplace following the skydiving fiasco, as Bridget walks to her boss's office her sweater is buttoned the wrong way in one shot, the right way in the next, and back to the wrong way when she actually enters the office.
(at around 18 mins) When leaving for work on the second morning, Bridget is wearing the same spotty blouse she had on the day before. When she gets to the office she is wearing a pink jumper.
(at around 1h 29 mins) When Bridget runs through the rain to Mark Darcy's house, her hair and clothes are soaking as she stands in the porch. From the next shot, she appears dry. Then she is soaking again. Then dry.
(at around 1 min) At a party Bridget's uncle approaches her with a glass in each hand, one suddenly disappears allowing him to touch her bottom.
(at around 27 mins) During the Law Council quiz, in the final and deciding round, Contemporary Culture; the final question asked by the quiz-master which will decide if Bridget's team table will win or not is "What was the name of Madonna's first UK single?". Bridget is sure the answer is 'Lucky Star' while other team members are unsure and discuss that the answer may be 'Holiday'. Bridget then confidently gives the answer as 'Lucky Star'. Bridget is told she is wrong and her opponent gives the answer "Holiday", the quiz-master confirms this is indeed correct, thereby meaning that Bridget's team loses the quiz. Madonna's first UK single was, indeed, "Holiday", released in September 1983. Madonna's first single ever is "Everybody", released in October 1982, yet not in the United Kingdom.
(at around 3 mins) In the parachute scene Bridget Jones makes an unassisted jump, no-one makes their first jump unassisted and a network would certainly pair a journalist with an experienced instructor so the journalist only has to focus on producing footage, even if the journalist were an experienced parachute jumper.
(at around 4 mins) During the skydiving scene when Bridget is under canopy she is seen holding a Metal D Handle in her right hand. Metal D handles are only used for the reserve parachute, the reserve D handle is still clearly in place on her left webbing. The parachute deployed is clearly a main parachute deployed using a BOC hand deploy pilot chute - not a rip cord.
(at around 1h 4 mins) When Bridget asks whether the constellation she sees is the big dipper or the smaller dipper Daniel says that it is definitely the big dipper, because so they are so close to the equator.
(at around 22 mins) At the Law Council dinner when Bridget goes into the bathroom to correct her makeup, the shot of her drying her face shows that it is clearly a double and not Renée Zellweger.
(at around 1h 4 mins) Whilst stargazing on Daniel Cleaver's balcony, you see a shot of the sky which is full of clouds. You wouldn't be able to see any stars with the amount of clouds in the sky.
(at around 3 mins) The video footage coming from the camera strapped to Bridget's head when she is about to jump out of the plane doesn't match her head movements. When her head is seen to nod on the Control Room screen on the left, the footage from the camera on the right screen doesn't nod.
(at around 43 mins) Even though the film is set six weeks after the original in 2001, when Bridget and Mark are travelling in Mark's BMW it has a '53' numberplate which were issued between 1st September 2003 and 28th February 2004.
When Mark visits Bridget in the Thai prison, there's a wall-mounted phone in the background. This is clearly a vintage British GPO telephone model 711 or similar, which was introduced in the early 1960s and in use all over Britain for several decades afterwards.
(at around 1h 1 min) When Bridget is on the beach making a sand angel at Daniel's feet, some sort of tarp underneath the sand can be clearly seen being pulled tight between Bridget's legs as they move back and forth.
(at around 6 mins) Bridget says at the beginning of the film, which is at Christmastime, that she has "been in a functional relationship with an adult male for six wonderful weeks," but she actually began to date Mark Darcy the previous Christmas. This means they have been together for approximately one year.