The road-trip drama “Green Book” drove through a cloud of controversy to win best picture at the 91st Academy Awards on Sunday — edging out top competitors like “Roma” and “Black Panther.”

The film’s victory capped off a night filled with historic wins for diversity and representation. Spike Lee won his first Oscar for co-writing the adapted screenplay for the fiery docudrama “BlacKkKlansman.” Two technical artists behind “Black Panther” — costume designer Ruth Carter, production designer Hannah Beachler — became just the second and third black women to win non-acting Oscars.

But the triumph of “Green Book,” a film that has been fiercely debated and criticized over its racial politics, is sure to complicate the cultural conversation around the ceremony, the first in 30 years to forego a host.

The acting awards went to Rami Malek for “Bohemian Rhapsody,” Olivia Colman for “The Favourite,” Mahershala Ali for “Green Book” and Regina King for “If Beale Street…