This is a great film. I never get tired of watching it. Richard Burton gives one of his best performances, but it is the character parts that make this film memorable. Michael Rennie as Peter is perfectly suited for the role. He gives a wonderfully ascetic performance. Jeff Morrow as the centurion dominates the scenes he's in with his weary observations and his underlying contempt for the privileged but dissipated Marcellus. But it is Jay Robinson's performance as Caligula that remains unforgettable. His role as the maniacal Roman emperor is one of the most entertaining film performances I have ever seen. Get this film!