Netflix has spent a record-breaking amount purchasing the Alexandria Ocasio-Cortez documentary Knock Down the House, which premiered at the Sundance Film Festival last week.

Deadline reports that the streaming service spent $10 million (£7.7 million) on the documentary, which received the festival's Festival Favourite Award.

The publication notes that the sale marks the most amount of money ever spent on a documentary at a film festival.

Directed by Rachel Lears, the film follows Democratic candidate Ocasio-Cortez, along with three other candidates, who were running against incumbents last year.

Knock Down the House was one of several documentaries to sell for millions at Sundance. Hulu bought The Untitled Amazing Johnathan Documentary, about the final tour of a dying musician for $2 million (£1.5 million), while Netflix spent $3 million (£1.5 million) American Factory, about a Chinese billionaire who revamps General Motors plant into a new factory.

Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Show all 15 1 /15 Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Alexandria Ocasio-Cortez greets fellow lawmakers ahead of the State of the Union address Getty Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Alexandria Ocasio-Cortez participates in an event with Democratic members of Congress EPA Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures The Democrat senator speaks during a news conference at the U.S. Capitol January 30, 2019 Getty Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Alexandria Ocasio-Cortez and fellow Democrat Rashida Tlaib AP Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Alexandria Ocasio-Cortez at the Senate chamber to watch two votes on January 24, 2019 Getty Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Alexandria Ocasio-Cortez arrives with Chellie Pingree at a House Democratic Caucus meeting Getty Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Ocasio-Cortez during Donald Trump's State of the Union address Reuters Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures New York State Assembly member Catalina Cruz with Ocasio-Cortez AFP/Getty Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Nydia Velazquez talks with Alexandria Ocasio-Cortez Reuters Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Ocasio-Cortez casts her vote for Nancy Pelosi as Speaker of the House EPA Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Alexandria Ocasio-Cortez poses with a campaign worker during a whistle stop in the Queens borough of New York Reuters Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Ocasio-Cortez outside the US Capitol AFP/Getty Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Ocasio-Cortez after casting her ballot in the 2018 midterm general election at a polling site in New York EPA Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Alexandria Ocasio-Cortez looks on during a march organised by the Women's March Alliance in Manhattan Reuters Alexandria Ocasio-Cortez - the Democratic congresswoman in pictures Ocasio Cortez looks on at the Capitol in Washington, DC, on January 16, 2019 AFP/Getty

Other sells include the Leonardo DiCaprio-produced Sea of Shadows to NatGeo, Sony Pictures Classics purchasing David Crosby documentary Remember My Name, and Showtime buying the Wu-Tang Clan's Of Mics And Men.

Ocasio-Cortez, who represents New York’s 14th congressional district, worked as a bartender before thrashing Democrat stalwart Joe Crowley – the 10-term representative and then-fourth-ranking Democrat in the House.