Question: Do both directors of films Grijpstra & De Gier and Interference (Film) share the same nationality?
Sentence (from "Wim Verstappen"): After the demise of Scorpio Films, Verstappen directed two films based on novels by Simon Vestdijk," Pastorale 1943"( 1978) and" Het verboden bacchanaal"( 1981).
Relevant evidence: No