Before Russell Crowe was cast, Mel Gibson and Nicolas Cage were originally considered for the lead role.
Another trivia mistakenly claims this movie is based on a South Indian movie when it is in fact based on "Book of Mirrors" a novel by Romanian author Eugen Ovidiu Chirovici.
Russell Crowe allegedly demanded that the step on his trailer be dismantled and replaced with a custom step for the brief periods he would spend in it during filming. The crew found him extremely difficult to work with.
Russell Crowe and Karen Gillan both appeared in Thor: Love and Thunder (2022) as Zeus and Nebula, although they did not share any scenes.