Anderson had been a fan of Radiohead's music and was impressed with Jonny Greenwood's scoring of the film "Bodysong". While writing the script for "There Will Be Blood", Anderson heard Greenwood's orchestral piece "Popcorn Superhet Receiver," which prompted him to ask Greenwood to work with him. After initially agreeing to score the film, Greenwood had doubts and thought about backing out, but Anderson's reassurance and enthusiasm for the film convinced him to stick with it. Anderson gave Greenwood a copy of the film and three weeks later he came back with two hours of music recorded at Abbey Road Studios in London. Concerning his approach to composing the soundtrack, Greenwood said to "Entertainment Weekly":