A centurion was a professional officer in the Roman army, typically commanding a century, which was a unit of around 80 to 100 soldiers. Centurions were responsible for training, discipline, and leading their men in battle. They held significant authority and played a crucial role in the Roman military hierarchy, often acting as the link between the common soldiers and higher-ranking officers. Their leadership was vital to the effectiveness and organization of Roman legions during military campaigns.

In the Bible, a centurion is a Roman officer who commands a unit of approximately 100 soldiers. Centurions are mentioned in the New Testament, notably in the Gospels. They are often portrayed as figures of authority and respect, such as the centurion who recognized Jesus' divinity and requested healing for his servant (Matthew 8:5-13). Another significant centurion is Cornelius, described in Acts 10 as the first Gentile convert to Christianity, highlighting the inclusive nature of the early Christian message.

"Centurion," directed by Neil Marshall, is loosely based on historical events surrounding the Roman Ninth Legion's disappearance in Britain during the early 2nd century AD. While the film incorporates elements of truth, such as the struggles between Roman soldiers and native tribes, it takes creative liberties with characters and plot details. The actual fate of the Ninth Legion remains a mystery, making "Centurion" a dramatized interpretation rather than a strictly accurate retelling of historical facts.

In the New Testament, Jesus was amazed at a centurion because of the man's profound faith. The centurion, a Roman officer, sought healing for his servant and expressed his belief that Jesus could heal him with just a word, demonstrating his understanding of authority. He recognized that, like himself, Jesus had the authority over sickness. Jesus commended the centurion's faith, stating that He had not found such great faith in all of Israel, highlighting the centurion's trust in His power and the inclusivity of God's grace beyond the Jewish people.