In the film, Cuba Gooding Junior's character's left leg is amputated. When he is suiting up for his test in the new diving suit, a body double is used for his mirror image from the waist down. The body double has an amputated leg. First of all, even though it is a mirror image, it is clear that the amputated leg is the model's right leg; not the left. And, to get really technical, Cuba Gooding's character's amputation was below the knee on his left leg; the model's amputation is above the knee on his right.