Shrek

Answer: the Pied Piper

Rumplestiltskin is desperate to find Shrek, to stop him from unravelling all he has created. He lets it be known that he (Rumpelstiltskin) is going to be leading the nightly raiding party and the band of ogres, led by Fiona, become determined to ambush him. However Rumpelstiltskin is not there, but the Pied Piper is (disguised in a giant duck suit). He has his pipe set for ogres and compels them to dance their way to the castle, where Rumpelstiltskin takes them prisoner.

Answer: Having someone scratch his butt

The curtain is opened to reveal the prince and princess (Shrek and Fiona) and a servant is using a wire brush to scratch Shrek's butt. Everybody who is formally dressed turns and gasps.

Answer: She is bald.

Rapunzel, Rapunzel never gets a chance to let down her hair, but during the melee someone tries to swing on one of her long braids, dislodging her wig and revealing her baldness. This is just before the façade of her tower falls down and she flees the stage.

Answer: Captain Hook

We see Captain Hook playing the piano when the king comes to the Poison Apple to find a hit man to get rid of Shrek.

Answer: Lillian

Harold says her name a couple of times throughout the movie, although I think donkey says it first at the dinner. The Queen is played by Julie Andrews, who's played a Queen before in both 'Princess Diaries'.

Answer: until midnight

Shrek has to kiss his true love by midnight for the transformation to be permanent. Of course this is going to be difficult, because Shrek, Donkey and Puss 'N Boots are chained in the dungeon, and Prince Charming is dancing with Fiona and pretending to be Shrek.

Answer: a mushroom

After a while, it starts raining, so Shrek, Donkey and Puss leave, but behind them, the mushroom with the snot on it becomes a rose.

Answer: Happily Ever After

Shrek, Donkey and Puss in Boot steal this potion from Fairy Godmother's magic factory. The workers in the factory were very reminiscent of the Oompa Loompas from "Charlie and the Chocolate Factory".

Answer: Lava

The bridge goes over molten lava.

Answer: Donkey

It was when he was trying to be nice about Shrek's home after having just been rude about it (he hadn't realised that Shrek lived there!)

Answer: 6

He has 5 dancer/singers and 1 accordion player.

Answer: Dragon

Apparently the theme playing during the escape from the dragon used a rhythm from David Arnold's 'The World is Not Enough'.

Answer: The Seven Dwarves

This is when the Seven Dwarves are hoisting Snow White's coffin onto Shrek's dinner table.

Answer: Eat Me!

The movie was full of suggestive language, which is why it has a PG rating rather than G. (Like Shrek saying, 'I have to save my ass,' when he had to save Donkey from the dragon.)

Answer: Pinocchio

That part was kinda cute.

Answer: 'On The Road Again'

After the first couple of lines, Shrek makes him hum the song.

Answer: Eyeball jelly

When the ogre hunters are talking about what ogres do, Shrek comes from behind them and tells them that eyeball jelly is actually pretty good on toast.

Answer: hug

Donkey has to be the most hilarious character in this movie! And I think Eddie Murphy was cast perfectly for this part.

Answer: John Lithgow

He has the perfect snobby voice for Farquaad.

Answer: She tries to eat him.

Because Shrek has told Donkey that Dragon is his wife, Donkey is not frightened of her. They come nose to nose and Donkey seems smitten. Then she opens her mouth and takes him in her mouth. Puss in Boots sticks his sword into her neck, causing her to release Donkey, who yells "I'll call you." as they pull away on a broom.

Answer: five

Throughout the movie Donkey is tackled, hugged, and swarmed by the Dronkeys. They are from the second movie, where Dragon was off having babies.