Unending Fury was an action thriller film released in 2573, directed by Sigma Octanus IV native Harold Samyon. The film was very successful, grossing several billion credits at the box office, and was praised by critics for its unflinchingly realistic depiction of the Insurrection during the late days of the Human-Covenant War. The story was written by Samyon and Kevin Roberts, the latter being a former UNSC Army trooper who had fought in anti-insurgency operations for the last few years of the Human-Covenant War.