<Li> In the 1954 film Demetrius and the Gladiators, the Emperor Caligula anachronistically sentences the Christian Demetrius to fight in the Colosseum . </Li> <Li> The conclusion of the 1957 film 20 Million Miles to Earth takes place at the Colosseum . </Li> <Li> The Bob Dylan song "When I Paint My Masterpiece," first recorded in 1971 by The Band and later appearing on the album Bob Dylan's Greatest Hits Vol. II, mentions both the "Spanish Stairs" (the Spanish Steps) and the Colosseum . </Li> <Li> In the 1972 film Way of the Dragon, Bruce Lee fought Chuck Norris in the Colosseum . </Li>

Who came up with the idea of the colosseum