far far away
(colloquial, fairy tales) Used to add emphasis to the fact that the story takes place in a far away land.
Long long ago, in a land far far away there lived a beautiful princess.
In the beginning, they housesit for Shrek and Fiona while they visit the Kingdom of Far Far Away. Source: Internet
Later, they see Shrek, Donkey and Puss in Boots arrested in Far Far Away and free them, then head to the castle to stop Prince Charming. Source: Internet