Master & Commander (2003) – Early in the film, after little Lord Blakeney’s arm is amputated, Jack gifts him a book about Horatio Nelson — who also famously lost his arm early on in his career.

Later, during the film's climax, Blakeney is ordered to remain aboard the HMS Surprise while Aubrey and crew board the Acheron. At one point (and for good reason) Blakeney defies orders and aggressively boards the Acheron anyway — much like Horatio Nelson, whose real claim to fame came when he defied orders at the Battle of Cape St. Vincent) and broke formation to aggressively board an enemy ship.