The Lord of the Rings: Gollum takes the eponymous character on a journey through Mordor and Mirkwood, but Gollum questing for his missing precious isn't the only familiar character to appear in the game. Gollum is a central character in J.R.R. Tolkien's The Hobbit and The Lord of the Rings books, and many know his story thanks to Peter Jackson's film adaptations. Though the game draws much of its inspiration from material briefly referenced in the books and appendices, The Lord of the Rings: Gollum features a number of characters who are also in the movies.

https://screenrant.com/lord-rings-gollum-characters-compare-lotr-movies/