Taya Kyle, widow of 'American Sniper' Chris Kyle, attends Oscars

The widow of Navy SEAL Chris Kyle walked the red carpet Sunday night to attend the Academy Awards, where "American Sniper," the film about her late husband, is nominated for several awards, including Best Picture.

Kyle posted an emotional note on Facebook ahead of the ceremony.

"I didn’t think I had the energy to show up at the Oscars, let alone be presentable,” Taya Kyle wrote on Facebook Sunday afternoon. "I don’t like whining and I believe in the power of recognizing blessings even when the chips are down. I wanted to support everyone who made this movie representing real veteran families."

She thanked Warner Brothers, a studio she called "exceptional to work with in every aspect" and a "fairy [godmother] for a regular woman who has kids [and] a murder trial for her beloved and dear friend" to handle at once, adding that she has been "honestly exhausted."

Chris Kyle and his friend Chad Littlefield were killed on Feb. 2, 2013, at a Texas shooting range.

Bradley Cooper, who portrays Chris Kyle in the film, is nominated for an Academy Award for Best Actor.

"He absolutely got it right," Taya Kyle said of Cooper in a red carpet interview. "I'm so grateful for everything that went into this movie. ... This is something [Chris] would be proud of."

"My kids love Bradley," she recently told NPR. "It is a very deep experience, and we have a tremendous amount of gratitude. And my kids ... don't even truly understand, I think, all of this, or the magnitude of this. They know him as the guy that played soccer with them, or the guy that has them laughing hysterically."

Earlier this month, Taya Kyle testified at the trial of her husband's accused killer, Eddie Ray Routh, in Stephenville, Texas.

Last week, the judge in Routh's trial reminded jurors to avoid any media coverage but did not ban them from watching the Oscars. Closing arguments are scheduled to begin Monday.

"I find myself in a surreal position," Taya Kyle continued. "Like Cinderella who scrubs the floors but has a fairy Godmother (Warner Brothers) who got me on a plane and had a dress and jewelry and even the shoes and Spanx waiting for me.

"And so it is," she added. "I am here. To represent my husband, military families and the beautiful people who put more than they had to to make this movie happen. I have a red eye flight scheduled to get me back for the trial on Monday morning. I am praying the impending ice storm in Texas doesn’t inhibit a safe trip home."

Twitter users praised Kyle's appearance on the red carpet.