The trailer for director Peter Jackson’s upcoming film based on J.R.R. Tolkien’s classic fantasy novels will make its worldwide premiere on Tuesday, the studio announced today.

A 15-minute satellite feed of the trailer for The Hobbit: An Unexpected Journey will stream at 10 p.m. ET/PT on the night of Dec. 20 and again the following day at 9 a.m. ET/PT.

Jackson is bringing back most of his cast from the hit trilogy franchise, The Lord of the Rings, including Ian McKellan as Gandalf, Elijah Wood as Frodo, Andy Serkis as Gollum, Orlando Bloom as Legolas and Cate Blanchett as Galadriel. Martin Freeman, from the British version of Ricky Gervais’ The Office, has come onboard in the title role of Bilbo Baggins.

The Hobbit will hit theaters next December.