premise: Undead is a 2003 Australian zombie science fiction horror comedy film written and directed by Michael and Peter Spierig and starring Felicity Mason, Mungo McKay and Rob Jenkins. It was then-relatively-unknown "Good Game" presenter Steven O'Donnell's first film role.
hypothesis: Steven O'Donnell has starred in many movies.
reason: It said that it was his first film role and mentioned another movie so from that information we only know of two movies that he has been in, however he could have been in more. The system was unable to determine what was meant by starred in.