10 Bizarre Ways Directors Tricked Audiences

There Will Be Blood (2007) is a masterpiece of scriptwriting, acting, and set design. It's perhaps one of Daniel Day Lewis' most iconic roles, and includes a remarkable amount of quotable lines. But the "I drink your milkshake" line has far more significance than one might think.

Multiple scenes involved the characters being drenched in viscus oil. For obvious reasons the filmmakers couldn't use actual oil; not only could it be potentially harmful to have actors covered in the liquid, but not even an artistic endeavour such this was worth wasting gallons of the precious fuel.

What did they use as a substitute then? Paul Thomas Anderson revealed it was the same ”stuff they put in chocolate milkshakes at McDonald's”. Gallons of chocolate syrup were used as a base to make the sticky, thick liquid. Depending on the scene, different formulas were concocted with varying consistencies; shots of the the oil spraying into the air used a fairly watered down formula, whereas a thicker concoction was used when the actors required a good drenching.