Wooden Crosses

Wooden Crosses is a 1932 French film directed by Raymond Bernard. This shows the horrors of WW1 trench warfare from the perspective of soldiers we grow to know.

trailer (in French, no subtitles):

The New York Times calls it "One of the great films in motion picture history". The Guardian says, "Less sentimental than All Quiet, and surprisingly little known outside France, Les Croix de bois (Wooden Crosses), now revived in a restored centennial version, is one of the most important war movies."

Criterion says, "No one who has ever seen this technical and emotional powerhouse has been able to forget it." DVD Talk says it's "one of the most tender and tough antiwar films to come out of the era."