Bilbo Baggins had played Frodo in the BBC radio series 20 years earlier. The movies omit the 17-year gap between Bilbo's 111th birthday and Frodo's departure from the Shire, as a result Bilbo mentions in Rivendell that he was unable to revisit the Lonely Mountain before his retirement. In Peter Jackson's "The Hobbit" film series, a prequel to "The Lord of the Rings", the young Bilbo is portrayed by Martin Freeman while Ian Holm reprises his role as an older Bilbo in "" (2012) and "" (2014). The International Astronomical Union names all colles (small hills) on Saturn's moon Titan after characters
Works inspired by J. R. R. Tolkien (1980); earlier they had made a TV animation of "The Hobbit" (1977). "The Lord of the Rings" was adapted as a trilogy of films (2001–03), directed by Peter Jackson. "The Hobbit" was also adapted as a trilogy (2012–14), with some elements adapted from "The Return of the King"'s Appendices. The split of Tolkien's works between Tolkien Enterprises and the Tolkien Estate means that none of the Tolkien Enterprises' products can include source material from outside "The Hobbit" and "The Lord of the Rings", and therefore a film or stage version of "The Silmarillion" is highly unlikely. Comparisons have been made