One of the best examples of this is in The Hobbit: An Unexpected Journey, when Gollum and Bilbo have a chance encounter. Their interaction changes the course of the story forever. Gollum's movie ...

Gollum. Here, alone with Gollum, on the shores of an underground lake, the unassuming Bilbo Baggins not only discovers depths of guile and courage that surprise even him, he also gains possession ...