 There Will Be Blood stood apart from his first four films but shared similar themes and style such as flawed characters , moving camera , memorable music , and a lengthy running time . The film was more overtly engaged with politics than his previous films had been , examining capitalism and themes such as <unk> , optimism , and obsession . The Master dealt with " ideas about American personality , success , <unk> , master @-@ disciple dynamics , and father @-@ son mutually assured destruction . " All of his films deal with American themes with business versus art in Boogie Nights , ambition in There Will Be Blood , self @-@ <unk> in The Master . 
