Master and Commander: The Far Side of the World is a 2003 American epic period war-drama film co-written, produced and directed by Peter Weir, set during the Napoleonic Wars. The film's plot and characters are adapted from three novels in author Patrick O'Brian's Aubrey–Maturin series, which includes 20 completed novels of Jack Aubrey's naval career. The film stars Russell Crowe as Aubrey, captain in the Royal Navy, and Paul Bettany as Dr. Stephen Maturin, the ship's surgeon. This is the second onscreen collaboration for Crowe and Bettany, both of whom previously co-starred in 2001’s A Beautiful Mind.