Ken Loach, perhaps the most accomplished and intelligent Marxist practitioner of social realism left in England, stretches his impressive talents to depict the Spanish civil war from the point of view of a young unemployed communist from Liverpool (Ian Hart) who joins the republican anti-Franco forces. Scripted by Jim Allen (who also wrote Loach’s Raining Stones) Land and Freedom is historically convincing as well as gripping–Loach near his passionate best. Far from offering a standard defense of the communist position, this 1995 film presents a detailed revisionist critique of the party’s betrayal of other leftist factions in Spain. With Rosana Pastor, Iciar Bollain, Tom Gilroy, and Frederic Pierrot. Music Box, Friday through Thursday, April 12 through 18. –Jonathan Rosenbaum