Photo by Richard Harbaugh/A.M.P.A.S.

As Hollywood’s biggest night unfolded, the only thing more anticipated than the parade of glittering gowns at the Kodak Theatre were the winners themselves. (And even that is debatable.) Here are three Oscar attendees who chose to wear their politics on their sleeves by going green on the red carpet at the 82nd Academy Awards.

Suzy Amis Cameron at the 82nd Academy Awards, James Cameron, Suzy Amis Cameron, scars 2010, Academy Awards 2010, eco-fashion, sustainable fashion, green fashion, red carpet fashion, Avatar, green Oscar fashion

Photo by Brian Snyder/Reuters

SUZY AMIS CAMERON

Draped in “Avatar blue,” director James Cameron’s ladylove, Suzy Amis Cameron, wore a Grecian-style dress by Jillian Ganz, the Michigan State University senior who won Amis Cameron’s “Red Carpet Green Dress” contest in February. The dress, made from a zero-waste pattern designed to eliminate leftover scraps, was sewn by Academy Award-winning designer Deb Scott from peace silk, which is derived from silkworm cocoons without killing the pupae inside.

Livia Giuggioli Firth at the 82nd Academy Awards, Livia Firth, Livia Giuggioli, Colin Firth, Oscars 2010, Academy Awards 2010, eco-fashion, sustainable fashion, green fashion, red carpet fashion, Orsola de Castro, green Oscar fashion

Photo by Greg Harbaugh/A.M.P.A.S.

LIVIA FIRTH

Livia Firth nee Giuggioli, wife of Best Actor nominee Colin, made her entrance in a simple yet striking black gown by Orsola de Castro of From Somewhere. Pieced together from end-of-roll fabric, discarded silk, organza offcuts, and salvaged silk chiffon (from unfinished petticoats), the elegant upcycled number fulfills Firth’s pledge to wear only ethical, sustainable dresses throughout awards season. (She’s been blogging about her efforts over at British Vogue.)

Robert Kennedy, director of Food Inc, at the 82nd Academy Awards, Robert Kennedy, Food Inc., Oscars 2010, sustainable fashion, green fashion, red carpet fashion, Loomstate

Third from left, Kenner in Loomstate

ROBERT KENNER

Although Academy Award nominee Robert Kenner, the director of Food Inc. didn’t take home the golden man, he made Oscar history in a different way: by wearing the first American-crafted organic-wool tux ever to be made for the Oscars. ‚ÄúDressing Robert Kenner for this honorable occasion is truly relevant for Loomstate,” says Scott Mackinlay Hahn. “Food and fashion sustain our lives in the most unifying way, we could not chose a more important film maker to wear our clothes today.”

Woody Harrelson, green Oscar fashion, 82nd Academy Awards, Oscars 2010, sustainable fashion, green fashion, red carpet fashion, hemp tuxedo

Photo by Matt Petit/A.M.P.A.S.

WOODY HARRELSON

The Best Supporting Actor nominee wore a black, custom Burberry tuxedo made from…hemp! Very apropos, considering that Woody Harrelson is a an outspoken advocate of marijuana reform.