When the front person has to defecate in The Human Centipede.
… After the destruction of the POWs, the soldiers turned their attention to the women of Nanking and an outright animalistic hunt ensued.
The scene caused many viewers to protest the need for such a lengthy torture scene.
You wouldn't think a classic like The Godfather would be mired in controversy.
They were used exclusively to train naval pilots on how to land on moving carriers.