Here is how the Story of the Amulet goes in Yuna and the Fellowship of the Amulet.
(Walt Disney Pictures logo, Walt Disney Animation Studios logo, Pixar Animation Studios logo, DisneyToons Studios logo, Universal Pictures logo, Dreamworks Animation logo, 20th Century Fox Pictures logo, Paramount Animation logo, Nickelodeon Movies logo, Warner Bros Pictures logo, New Line Cinema logo, MGM Pictures logo, Hub Network logo, Discovery Family Channel logo and Britt Allcroft logo)
Aslan: (narrating) A long time ago, There was the forging of the great amulets. Some were given to the Alicorns; immortal, wisest and fairest of all beings. Some, to the Earth Ponies, great miners and craftsmen of the mountain halls. And some were gifted to the race of Pegasi and Unicorns, who above all else desire power. For within these amulets was bound the strength and will to govern over each race. But they were all of them deceived, for another amulet was made. In the land of Armageddor, in the fires of Mount Diablo, the Demon Lord, Chernabog forged in secret a master amulet to control all others. And into this amulet, he poured his cruelty, his malice and his will to dominate all life. One amulet to rule them all.
Chernabog: Soon, All will be mine to control!
Aslan: (narrating) One by one, the free lands of one world and the next fell to the power of the Amulet. But there were some who resisted. The Sorcerer, Yen Sid and his Apprentice, Mickey Mouse stood against the armies of Armageddor, and on the slopes of Mount Diablo, they fought for the freedom of all worlds.
Yen Sid: (using his powers) Now, Mickey!
Mickey Mouse: (uses his powers to take down Chernabog)
Aslan: (narrating) Chernaog, the enemy of the free peoples of all worlds, was defeated. Yen Sid gave the Amulet to Star Swirl the Bearded, who had this one chance to keep it hidden until the time is right for someone or somepony to destroy evil forever.
Yen Sid: Make sure no evil will grab hold of the amulet.
Star Swirl the Bearded: Of course, Yen Sid.
Aslan: (narrating) So, Star Swirl kept the amulet hidden until that very possible moment to find a chosen bearer.