Director Ezra Edelman (R) and producer Caroline Waterlow (L) pose after winning the Best Documentary Feature award for "O.J.: Made in America" with NASA mathematician Katherine Johnson at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Production designer David Wasco (L) and art director Sandy Reynolds-Wasco pose after winning the Best Production Design award for "La La Land" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Sound Editor Sylvain Bellemare poses after winning the Best Sound Editing award for "Arrival" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
(L-R) Songwriters Justin Paul, Justin Hurwitz and Benj Pasek pose after winning the Best Original Song award for "City of Stars" from "La La Land" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Editor John Gilbert poses after winning the Best Film Editing award for "Hacksaw Ridge" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
(L-R) Sound mixers Peter Grace, Robert Mackenzie, Kevin O'Connell and Andy Wright pose after winning the Best Sound Mixing award for "Hacksaw Ridge" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Justin Hurwitz poses after winning the Best Original Score award and the Best Original Song award for "La La Land" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Director Alan Barillaro and producer Marc Sondheimer pose after winning the Best Animated Short Film award for "Piper" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
(L-R) Songwriters Justin Paul, Justin Hurwitz and Benj Pasek pose after winning the Best Original Song award for "City of Stars" from "La La Land" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Production designer David Wasco (L) and art director Sandy Reynolds-Wasco pose after winning the Best Production Design award for "La La Land" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Visual effects artists Dan Lemmon, Andrew R. Jones, Adam Valdez and Robert Legato pose after winning the Best Visual Effects award for "The Jungle Book" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Director Kristof Deak (L) and producer Anna Udvardy pose after winning the Best Live Action Short Film award for "Sing" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Producer Joanna Natasegara and director Orlando von Einsiedel pose after winning the Best Documentary Short Subject award for "The White Helmets" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Justin Hurwitz poses after winning the Best Original Score award and the Best Original Song award for "La La Land" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
Linus Sandgren poses after winning the Best Cinematography award for "La La Land" at press room of the 89th Academy Awards at the Dolby Theater in Los Angeles, the United States, on Feb. 26, 2017. (Xinhua/Yang Lei)
