A gobsmacked Colman gave a giggling, circuitous acceptance speech that nonetheless managed to address the elephant in the room — that her victory had denied one to Glenn Close (“The Wife”), who had been expected to break her seven-nomination losing streak.

“This is not how I wanted it to be,” Colman said, as the camera cut to Close in the audience. Close smiled and offered a c’est la vie shrug.

Spike Lee was not as sanguine. When “Green Book” won best picture, he made a disgusted gesture and started walking out of the theater as “Green Book” producers gave their speeches. Backstage, Lee said, “No comment,” when asked about the coronation of “Green Book,” which detractors complain has a retrograde view of race.

Lee then added, “I thought I was courtside at the Garden and the ref made a bad call.”

In a major shift from the #OscarsSoWhite years of 2015 and 2016, this year’s ceremony, which lasted a little over three hours, was notable for the diversity of honorees. Two “Black Panther” crew members, Hannah Beachler (production design) and Ruth E. Carter (costumes), became the first African-Americans to receive Oscars in their respective categories. Cuarón received the prize for best cinematography for “Roma,” making him the first director to win for shooting his own film.

[Hannah Beachler and Ruth E. Carter make Oscar history for black women.]

Asian-Americans were represented in the victory of “Free Solo,” which was named best documentary. (“Bao,” which won best animated short, was made by a Canadian filmmaker of Asian descent.) L.G.B.T. people were acknowledged with “Bohemian Rhapsody.