Produced in 1971 as a student film at San Francisco State University, Bloomberg's "Naming of Parts" won the Student Peace Prize at the 13th annual American Film Festival. Subsequently, it was picked up for distribution as an educational film. From "Poetry and Film for the Classroom" (English Journal, January 1977), a "highly selected checklist of some of the best films made from poems":
Naming of Parts (Contemporary/McGraw-Hill, 5 min., black and white, 1972). Henry Reid's [sic] poem about a soldier daydreaming during a demonstration/lecture on the naming of the parts of his rifle is presented visually through the eyes of the man. The officer conducting the lesson talks about the weapon and death, but the soldier's thoughts are on nature, sex, and life.
If you prefer a direct, non-Flash link, here's the full version (50MB MPEG file, lengthy download).