LOS ANGELES -- Regina King's flowing gown nearly tripped her up on the way to collect her Oscar trophy, the actress' only misstep this award season.

King was honoured as best supporting actress for 鈥淚f Beale Street Could Talk鈥 at Sunday's ceremony, a final flourish to a run of victories including a Golden Globe trophy, Independent Spirit award and numerous honours from film critics' groups.

King, who gave an impassioned acceptance speech at the January Globes calling for equal opportunity for women in Hollywood, paid tribute at the Oscars to her mother, God and the writer whose work was the basis for 鈥淚f Beale Street Could Talk.鈥

鈥淭o be standing here, representing one of the greatest artists of our time, James Baldwin, it's a little surreal,鈥 an emotional King said. She lauded the late Baldwin for birthing the story and writer-director Barry Jenkins for nurturing and surrounding it with 鈥渟o much love and support.鈥

鈥淪o it's appropriate for me to be standing here, because I'm an example of what it looks like support and love is poured into you,鈥 she said. King switched her attention to her beaming mother, who had accompanied her to the ceremony.

鈥淢om, thank you for teaching me that God is leaning, has always been leaning, in my direction,鈥 King said, concluding her speech with 鈥淕od is good, all the time.鈥

Amy Poehler, one of the presenters of King's trophy, offered her more kudos backstage: 鈥淲hat an amazing speech by Regina,鈥 Poehler said.

King's heels caught in her gown as she started to take the stage. Coming to her rescue: Chris Evans, aka Captain America, who helped steady her as she got untangled.

The other nominees in the supporting actress category were Amy Adams for 鈥淰ice,鈥 Marina de Tavira with 鈥淩oma鈥 and Emma Stone and Rachel Weisz for 鈥淭he Favourite.鈥

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Associated Press writers Andrew Dalton and Lindsey Bahr contributed to this report.