How do they film continuous blood pooling?

I have seen in American Sniper, Dead-7 and Carrie that when someone is killed, they are laying on the ground with blood leaking out of their back or somewhere else on the body.

The puddle continuously grows with few signs of slowing down. This is obviously not CGI because it is a real liquid (may not be real blood as that would spark an emergency in real life).

I have seen in American Sniper that when the protagonist kills yet another enemy, they are filmed hitting the ground and blood starts pooling around their body.

In Carrie: In the dance room where Carrie sets her powers loose and kills a lot of teenagers in the process, there are a few that hit the ground with blood pooling under their bodies. Sometimes they would be on their side with blood coming out.

In Dead 7: Kimono and the other six killed lots of zombies. Some of the six were killed in the process as well before they came to Apocalypta to kill her. They were filmed hitting the ground dead with blood pooling around them.

I am not sure how they film this as they are wearing thin shirts for these scenes, and not only that, but the characters also have blood (obviously fake) only just dripping out of the side of their mouths (an indicator they have a ruptured and wounded stomach or lung (in this case the blood would be pink and frothy).

What is the film technique that allows this to happen?

film-techniques

Best Answer

With a reference to my answer here, the continuous blood pooling is easy to film by passing a small pipe through the performer's clothing and this pipe can be connected to a container, either plastic or something that can be hidden easily, with a liquid similar to blood (as mentioned in answers to this question). Remember someone on set can also use a pump to show blood pumping out of the performer's body.

In such scenes, we see the performer lying on the ground. This pipe can easily be hidden under them inside their clothing.

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How do they film continuous blood pooling? - Person Holding Jack O Lantern

How do they film continuous blood pooling? - Woman in White Crew Neck Shirt

How do they film continuous blood pooling? - Green Trees Beside Pond

How do actors spit out blood?

There are blood capsules, like large pills made from gelatin or similar and filled with blood. The actor can keep these in their mouth and bite them open on cue to provide a trickle of blood.

How do they make blood in TV shows?

Fake blood generally consists of the following in various ratios:

Corn syrup (or plain syrup) as the base.

Dishwashing liquid to prevent the blood from beading and staining.

Opacifier, e.g. titanium dioxide to make blood non-translucent.

Red food colouring as the main colour.

Blue food colouring to darken the tone.

Do they use ketchup for blood in movies?

One of the most widely used mixtures that helps create the illusion of real blood is corn syrup with food dye. Non-dairy creamer can also be added to get the right consistency. Tomato ketchup is another popular alternative used to fake blood.

What do they make blood out of movies?

The most common is red food coloring, often inside small balloons coupled with explosive devices called squibs. Alfred Hitchcock famously used Bosco Chocolate Syrup as fake blood in his 1960 thriller Psycho. Since the film was in black-and-white, the color was less important than the consistency.

How Fake Blood Is Made For Movies | Movies Insider

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