another recent UK DVD release, peripheral to Spain:

THE MAN FROM MOROCCO (1945, Associated British. Anton Walbrook,
Margaretta Scott)
"...a dispirited band of volunteers from the International Brigades
seeks refuge in France. But on reaching the frontier the band is
disarmed, and all are detained as political prisoners. Then come
instructions from Vichy that all fit prisoners are to be sent to
Morocco to work on the Sahara railway for the Germans. However, one
man manages to escape to London with vital information vital for the Allies."

Region 2, requires multi-region player outside Europe.

Best wishes, Thomas.