Imperium is a British-Italian TV movie series about key events and rulers of the history of the Roman Empire. The films in the series so far are: Imperium: Augustus (2003), a film about Caesar Augustus. Starring Peter O'Toole. Imperium: Nero (2004) A film about Emperor Nero. Imperium: Saint Peter (2005) Imperium: Pompeii (2007) Imperium: Augustine: the Decline of the Roman Empire (2010) See also Imperium (2016 film), an unrelated British-American film Imperium (disambiguation) Cultural depictions of Roman emperors Pentalogies