Movie ID, WW2 movie with accidental cannibalism?

A friend has often mentioned a movie they saw as a kid that disturbed the hell out of them and got them to stop eating meat for awhile.

Set during WW2 in Germany in a Nazi concentration camp, the guards serve soup to the prisoners and they are excited since it contains meat which is a pleasant surprise. Then the guard reveals the meat is actually human, and the main character? wonders if he is eating his father who recently died and his body taken away.

Any clues?

Probably not The Big Bus…

Dan: You eat one lousy foot and they call you a cannibal. What a world!

How old is this person? How old would the film have to be?

OMG! Imdb actually has the key word “accidental cannibalism” but none of the titles that come up seem to fit your description.

Could it had been a documentary?

There is a clip from a BBC documentary about ww2, the BBC interviewed a former Russian POW describing the horrible conditions, and some incidents of cannibalism that could had lead others to unknowingly consume human flesh.

I think we need more information, was the movie black and white? Any famous actor in it? Could had been a documentary or a made for TV movie? What year it was shown?

They are sure it was a movie, in color, would have seen it on TV sometimes in the mid to late 80s. They can only remember that the character in question actually said “am I eating my father?” in voice over narration.

You know, Google is being of less and less use when the phrase “eating my father”, including the quotes, gets more than 15 million hits. Or the world’s getting a lot more cannibalistic.