Gerard Butler starred in the underrated fantasy adventure Beowulf & Grendel, which is now streaming for free on Tubi.

One-liners don't get much more iconic than King Leonidas' (Gerard Butler) WWE-worthy utterance of "This. Is. Sparta!" in Zack ...

Gerard Butler’s breakout role That year, Gerard Butler played King Leonidas, a king of Sparta famous in Greece for apparently fighting off a massive Persian army with just 300 Spartans.