Question: Which film has the director who is older than the other, Dig Your Grave Friend... Sabata'S Coming or The Glass Boat? 
Sentence (from "And the Crows Will Dig Your Grave"): And the Crows Will Dig Your Grave is a 1971 Spanish western film directed by Juan Bosch and starring Craig Hill, Fernando Sancho and Dominique Boschero.
Relevant evidence: No