Constantine is fighting against Barbarians with his father when he is called to Rome. In his way to Rome, he falls in an ambush planned by Maxence, who wants to become emperor.
Constantine and the Cross is a 1961 historical drama film about the early career of the emperor Constantine, who first legalized and then adopted Christianity in the early 4th century. The fictionalised film only stretches as far into his life as the Battle of the Milvian Bridge in AD 312.