Question: Which film has the director who is older than the other, Line Of Demarcation (Film) or First Victory Loan: Return Journey? 
Sentence (from "Line of Demarcation (film)"): It is based on upon the memoir" Mémoires d'un agent secret de la France libre et La Ligne de démarcation" by Gilbert Renault under his pseudonym Colonel Rémy.
Relevant evidence: No