Question: Are Bahman Ghobadi and William Castle both American film directors?
Sentence (from "Bahman Ghobadi"): Bahman Ghobadi (Persian: بهمن قبادی‎ ‎ ; Kurdish: به‌همه‌ن قوبادی / Behmen Qubadî) is an Iranian film director, producer and writer of Kurdish ethnicity.
Relevant evidence: Yes