In the original Gladiator (2000), Lucius’s father is never clearly shown or named on screen, only implied to be Lucilla’s off‑screen husband, who is treated as deceased by the time of the story. However, in Gladiator II , the new film reveals that Maximus (Russell Crowe’s character from the first movie) is actually Lucius’s biological father, turning a long‑running fan theory into canon.