<P> Anderson has stated that the famous line in the final scene, "I drink your milkshake!", was paraphrased from a quote by former Secretary of the Interior and U.S. Senator from New Mexico, Albert Fall, speaking before a Congressional investigation into the 1920s oil - related Teapot Dome scandal . Anderson said he was fascinated "to see that word (milkshake) among all this official testimony and terminology" to explain the complicated process of oil drainage . In 2013, an independent attempt to locate the statement in Fall's testimony proved unsuccessful--an article published in the Case Western Reserve Law Review suggested that the actual source of the paraphrased quote may instead have been remarks in 2003 by Sen. Pete Domenici of New Mexico during a debate over drilling in the Arctic National Wildlife Refuge . In those remarks, Domenici stated: </P> <P> The oil is underground, and it is going to be drilled and come up . Here is a giant reservoir underground . Just like a curved straw, you put it underground and maneuver it, and the' milk shake' is way over there, and your little child wants the milk shake, and they sit over here in their bedroom where they are feeling ill, and they just gobble it up from way down in the kitchen, where you don't even have to move the Mix Master that made the ice cream for them . You don't have to take it up to the bedroom . This describes the actual drilling that is taking place . </P> <P> According to Joanne Sellar, one of the film's producers, it was a hard film to finance because "the studios didn't think it had the scope of a major picture". It took two years to acquire financing for the film . For the role of Plainview's "son", Anderson looked at people in Los Angeles and New York City, but he realized that they needed someone from Texas who knew how to shoot shotguns and "live in that world". The filmmakers asked around at a school and the principal recommended Dillon Freasier . They did not have him read any scenes and instead talked to him, realizing that he was the perfect person for the role . </P> <P> To build his character, Day - Lewis started with the voice . Anderson sent him recordings from the late 19th century to 1927 and a copy of the 1948 film The Treasure of the Sierra Madre, including documentaries on its director, John Huston, an important influence on Anderson's film . According to Anderson, he was inspired by the fact that Sierra Madre is "about greed and ambition and paranoia and looking at the worst parts of yourself". While writing the script, he would put the film on before he went to bed at night . To research for the role, Day - Lewis read letters from laborers and studied photographs from the time period . He also read up on oil tycoon Edward Doheny, upon whom Sinclair's book is loosely based . </P>

Who falls into the well and dies there will be blood