There Will Be Blood is a 2007 American epic period drama film written and directed by Paul Thomas Anderson, loosely based on the 1927 novel Oil! by Upton Sinclair. It stars Daniel Day-Lewis as Daniel Plainview, a silver miner turned oilman on a ruthless quest for wealth during Southern California's oil boom of the late 19th and early 20th centuries. Paul Dano, Kevin J. O'Connor, Ciarán Hinds, and Dillon Freasier co-star. The film was produced by Ghoulardi Film Company and distributed by Paramount Vantage and Miramax Films. At the 2008 Berlin International Film Festival, it won the Silver Bear Award for Best Director and a Special Artistic Contribution Award for Jonny Greenwood's score. It grossed $76.2 million worldwide on a $25 million budget.

Paul Thomas Anderson, also known by his initials PTA, is an American filmmaker. His accolades include nominations for eleven Academy Awards, three Golden Globe Awards, and eight BAFTA Awards. He has also won Best Director at the Cannes Film Festival, the Silver Lion at the Venice Film Festival, and both the Silver and Golden Bear at the Berlin Film Festival.