There was supposedly a line of dialog that Curtis did not say circulated at the time as a put down of him and his acting: “Yon-da lies de castle of me faddah” or similar.
In reality, Curtis uttered a similar line for real in the 1952 movie “The Son of Ali Baba” that goes: “This is the palace of my father, and yonder lies the Valley of the Sun”. Think of it as a New Yorker does the Arabian Nights.
In Gladiator’s first battle scene, the Germanic warriors are chanting Zulu chants lifted off the Zulu soundtrack