Keke Palmer wore a wedding dress for a movie premiere and had to lie down in the car to keep it 'crisp'

• Keke Palmer walked the red carpet at the London, England, premiere of "Lightyear" on Monday.
• She wore a 16Arlington wedding dress for the occasion and paired it with silver heels.

Keke Palmer will do whatever's necessary to make sure she looks sharp on the red carpet.

The actress, who's promoting her role in the upcoming Disney film "Lightyear," attended the movie's London, England, premiere on Monday.

She stunned at the event in a strapless white gown, and later shared photos of her look on Instagram.

In the caption of her post, she also revealed that she couldn't sit in the car on her way to the red carpet because her dress might have creased.

"All I gotta say is… never doubt my commitment to the look ‍♀️ 2nd pic = ya girl laying down in the car so I could bring y'all this dress looking CRISP ," she joked on Instagram.

Palmer's white dress had a structured top and midi skirt, which was adorned with feathers along its hem. As Glamour reported, the gown was pulled from 16Arlington's bridal collection.

The actress completed the look with a diamond bracelet, silver pumps, and an updo hairstyle.

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A few days earlier, Palmer's "Lightyear" costar Chris Evans also had a funny moment while promoting the film.

The actor visited Disneyland in Anaheim, California, on Saturday, and posed with characters like Mickey and Minnie while there. But when Pixar posted the photos online, Evans joked that he appeared to be edited into them.

"I promise I'm not photoshopped into these! I just have a very disciplined pose. ‍♂️ (And I don't know what to do with my hands)," he wrote.