There are a few movies that show people with their arms, legs and hands cut off, the camera angle hasn't even changed angle, and a large spurt of blood comes pouring out of the amputated limb and amputation site, until the person stops moving and is declared dead.

Also other parts of the body such as the head being cut clean off, blood pouring out. Legs being cut off in plain sight and is gushing with blood.

***How is this all filmed and what how do they film it?***