Sanctum is a 2011 Australian-American 3D disaster survival film directed by Alister Grierson and written by John Garvin and Andrew Wight. It stars Richard Roxburgh, Rhys Wakefield, Alice Parkinson, Dan Wyllie, and Ioan Gruffudd. Wight also produced the film, with James Cameron (writer/director of Avatar and Titanic) as executive producer. The film was released in the United States on 4 February 2011 by Universal Pictures to predominantly negative reviews from critics, but it was a box office success, earning $108.6 million on a $30 million budget. It also received an AACTA Award nomination for Best Visual Effects. Universal Studios Home Entertainment released Sanctum on DVD, Blu-ray Disc, and Blu-ray 3D on 7 June 2011.