The Lord of the Rings: The Fellowship of the Ring

In the Second Age of Middle-earth, the lords of Elves, Dwarves, and Men are given Rings of Power. Unbeknownst to them, the Dark Lord Sauron forges the One Ring in Mount Doom, infusing into it a great part of his power to dominate, through it and at a distance, the other Rings, so he might conquer Middle-earth. A final alliance of men and elves battles Sauron’s forces in Mordor, where Prince Isildur of Gondor severs Sauron's finger, and the Ring with it, thereby destroying his physical form. With Sauron's first defeat, the Third Age of Middle-earth begins. Unfortunately, the Ring's influence corrupts Isildur, and, rather than destroy the Ring, Isildur takes it for himself. Isildur is later killed by Orcs, and the Ring is lost for 2,500 years, until it is found by Gollum, who owns it for five centuries. The Ring is then found by a Hobbit named Bilbo Baggins. Read more on Wikipedia.