"There Will Be Blood" is a 2007 drama film directed by Paul Thomas Anderson. Loosely based on the novel "Oil!" by Upton Sinclair, the movie stars Daniel Day-Lewis in an Academy Award-winning performance as Daniel Plainview, a driven and ruthless oil tycoon in the early 20th century.

The story follows Plainview's relentless pursuit of wealth and power as he establishes an oil empire in Southern California. Along the way, he encounters conflicts with local communities, religious figures, and his own morality. The film explores themes of capitalism, greed, ambition, and the corrupting nature of power.

"There Will Be Blood" is characterized by its sweeping cinematography, atmospheric score, and intense performances. Day-Lewis delivers a tour de force portrayal of Daniel Plainview, capturing his complexity and inner turmoil. The film also features strong supporting performances, including Paul Dano as Eli Sunday, a zealous preacher who clashes with Plainview.

The movie received critical acclaim for its powerful storytelling, expert craftsmanship, and the performances of its cast. It was nominated for eight Academy Awards, winning two, including Best Actor for Daniel Day-Lewis. The film is often praised for its examination of the darker aspects of the American Dream and its unflinching portrayal of human ambition and its consequences.

"There Will Be Blood" has been hailed as a modern masterpiece and is considered one of the best films of the 21st century. It showcases the talents of Paul Thomas Anderson as a writer and director and stands as a compelling exploration of the human condition and the pursuit of power.