My question: Yes / no, is the following a verifiable fact?
"Guillermo del Toro directed a Spanish movie."
Please think gradually:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Guillermo del Toro was the director of Pan's Labyrinth, a Spanish-language film.
Thus, the answer is yes.