"Green Book" won Best Picture at 2019 Oscars.

In a wide-open field at the 91st Academy Awards, the dramedy about an unlikely friendship between a white driver (Viggo Mortenson) and a black classical pianist (Mahershala Ali) won the top prize in movies.

"Green Book" was beset by controversy over its depiction of racism, but managed to overcome it. It also won Best Original Screenplay.

"We made this film with love, and we made it with tenderness and we made it with respect. It was all done under the direction of Pete Farrelly," said producer Jim Burke.

Farrelly then took over the microphone: "It's about loving each other despite our differences and finding out about who we are ... The same people."

In a sign that 2018's movies divided Academy members as much as moviegoers, Alfonso Cuarón won Best Director for "Roma," seen as a heavy favorite for Best Picture before the ceremony.

See all the winners of the 2019 Oscars here.