Continuity mistake: In the scene where the mirror is brought in for Lord Farquaad, Gingerbread Man lies on a tray on the table. When the mirror is shown, and it cuts back to Lord Farquaad, the tray is moved to the other side of the table. (00:17:25)
Continuity mistake: In the scene where Shrek falls through the roof of the castle, in the shots where Fiona is in the background you can see the flower pot is on a table next to the pillow on the bed. However when Fiona reaches to get the flowers she reached down to the floor and not back towards the table with the flowers on. (00:35:10)
Continuity mistake: When the magic mirror is brought in, we see the chain and hook that it is supposed to go on. Yet after the mirror is hung up, we pan around from the back of the mirror to the front and it appears that the chain has been attached to the back plate of the mirror. Where did the hook go? (00:17:30)
Continuity mistake: When they are dining the second time, Shrek accidentally drops a cooked mouse, but when they stand up, the mouse is not there. (00:59:20)
Continuity mistake: When Shrek is brushing his teeth, the mirror breaks. Later, when he returns to his swamp, the broken pieces are different.
Continuity mistake: When Shrek sits to eat his meal he has a slug on the left-hand side of his plate facing towards him. When he is invaded by the Three Blind Mice the slug is suddenly facing the other way.
Revealing mistake: When Donkey and Shrek are walking through the garden area, they pass some sheaves of wheat (presumably.) If you look carefully, you will notice that the wheat stalks were cut, not pulled up, but what were they cut from? There is only bare earth. (00:27:45)
Continuity mistake: When Fiona tears a piece of bark off a tree to make a door for the cave, the shape of the bark is different from the bare spot on the tree. (00:45:15)
Continuity mistake: In the scene where Shrek is tangling the dragon's chain around the pillars, you notice that when Shrek crosses his own path, he jumps over the chain, but the dragon doesn't, so it would've been tripped over by the chain. And to make matters worse, when you see the camera focusing on Shrek, right before he tells Fiona and Donkey to head towards the exit, you can see the chain is high enough to run underneath without having to duck. (00:39:20)
Continuity mistake: In the scene with Lord Farquaad and the Gingerbread Man, Farquaad crumples one of the Gingerbread Man's legs into dust, and some crumbs fall out of his hand. When he opens his hands again, there is no sign of any crumbs. The only way that this is possible is for every last bit of gingerbread to fall out of his clenched fist. (00:16:45)
Continuity mistake: When Shrek and the donkey are looking at the stars, in one shot Orion's Belt (three bright stars in a row) is right next to the moon, but in the next shot of the stars it's not.
Continuity mistake: At the end of the movie, the bouquet of flowers that the dragon has in its mouth switches sides. At first it's on the same side as donkey, then jumps to the other side in the wide shot.
Revealing mistake: In the escape scene, before the bridge breaks, Shrek's left arm passes through the ropes.
Other mistake: Princess Fiona is cooking the eggs on the rock that is over the fire. She uses a big green leaf as an oven mitt to protect her from the heat, but then places her other hand on the rock, without a leaf, and somehow doesn't get burned.
Chosen answer: This is most likely because "broad" isn't too nice of a word, and children of any age could watch the trailer. Parents wouldn't want their children to copy inapropriate language, obviously.
s.ounder