Continuity: When Fairy Godmother is throwing the books behind her, the book "Snow White" lands on the other books. "Snow White" noticeably changes position between two shots.

Continuity: When Shrek and everyone else are trying to get into the castle, shots of Shrek facing back toward the other side of the drawbridge are missing the others, i.e. the pigs, Wolf, Donkey, Puss, Pinocchio, and mice.

Continuity: When Puss in Boots plants his sword in the ground then jumps out of his boots, his sword, boots and hat are nowhere near any trees or grass. Yet after attacking Shrek, Puss in Boots lands in his boots, and his boots, sword and hat have moved to being right beside a tree.

Continuity: When the door to Shrek's house is first opened (just after the honeymoon), it opens into the house. Every other time it opens to the outside. It's not a two-way door, because you can hear it hit the doorframe.

Deliberate "mistake": The hook handed man's voice changes between the two times he is playing the piano in the Poison Apple, due to the two different singers used to voice him.

Continuity: When Shrek, Donkey and Puss all go to the barn to shelter themselves from the rain, the doors open inward. Later, after the potion has taken effect and Donkey's showing off his trotting ability, the doors open outward.

Continuity: When Fiona shows her fighting talent by saving Shrek, they approach the trap holding hands, yet Fiona is not even visible in the medium range shot when Shrek is caught.

Continuity: When Puss is getting the Happily Ever After potion from behind the glass, the piece of glass he cuts out to pull the potion through disappears when the camera angle changes.

Audio problem: When the Fairy Godmother sings "Holding Out for a Hero" she tells the pianist to 'put it in C minor,' yet the pianist immediately begins to play in G minor, and the rest of the song is sung in that key.

Deliberate "mistake": When Shrek first meets Puss In Boots, Puss In Boots bursts out of Shrek's clothes "Alien" style leaving a tear. Then when we see them enter the Fairy Godmother's factory the tear is gone for the rest of the movie.

Continuity: At the dinner scene, Shrek says "better out than in" to Fiona. After that, the handwashing bowl and the shell's plate suddenly changes.

Continuity: In the 'chase scene' in the Fairy Godmother's factory, Shrek, Donkey and Puss spin quickly on a rotating device. In the shots where they are spinning, there is no sign of anyone in the background. Yet there is a gang of archers who had been shooting at them in the same room.

Continuity: In the scene where Shrek, Fiona and her family are dining, when Shrek and Fiona's father start to bicker and angrily eat their food, they both go for the pig in the middle of the table. This should have been impossible as the table in other shots is shown to be too long for either of them to reach considering they are both sitting at opposite ends. This is shown especially when the pig goes flying into the air.

Continuity: When Puss is stealing the Happily Ever After potion, he breaks the protective sheet of glass while trying to get the bottle out, but the shards of glass that should be raining down disappear in mid-air.

Continuity: The spoon Shrek uses to eat the 'soup' appears from nowhere between shots. It wasn't there previously when Shrek looks at the dinner set, and why would anyone bring it out if they don't need spoons until the actual soup is brought out?

Continuity: When Shrek is reading Fiona's diary, he drops it on the table. Later, Fiona wakes up and finds it, and its position is different.

Continuity: Puss saves the Gingerbread Man from drowning in the castle's moat by catching him with his sword, however, he is on Donkey's back and the drawbridge is a couple of meters above the water. So the sword would have to have been 2-3 meters long to get down to the Gingerbread Man.

Continuity: When Puss jumps down from Donkey and does his "cute" act, all but one knight raise their visors. Puss then drops his cuteness and attacks the knights. All of them now have their visors down, too quickly and without any noise.

Other: This is a UK/US vocal talent variation. In the UK version the voice of the Ugly Stepsister is that of UK TV/Radio Presenter Jonathan Ross yet the vocal talents are credited as CNN talk show host Larry King. Also, the voice of the Red Carpet Reporter is none other than UK Pop Idol Extra presenter Kate Thornton, yet again, the voice is credited as Hollywood reporter Joan Rivers, whom the physical appearance of the character is based on.

Continuity: During the first night in the castle, Shrek walks to the door of their room and his ears wilt. In the following pan shot to the king's balcony, his ears are standing up again. There is no time in which he could have voluntarily changed them.