Amanda Seyfried topped best-dressed lists when she arrived on the red carpet at the 85th annual Academy Awards in Los Angeles on Sunday.

As fashion critics applauded the Les Miserables actress for her embroidered custom Alexander McQueen halter gown, her co-star, Anne Hathaway, may have been disappointed at her fashion choice. According to a report, this year's Best Supporting Actress Oscar winner rejected a custom dress, designed by her friend Valentino Garavani, because it was too similar to Seyfried's McQueen gown.

The Devil Wears Prada star made a "difficult last-minute decision" to wear a pale pink satin Prada gown instead of a custom dress designed by Valentino, according to a statement she released on Wednesday, Feb. 27. Hathaway issued a formal apology to Valentino because the Italian fashion house had issued a press release to media stating that she would be wearing a dress designed exclusively for her. Hathaway did not mention Seyfried in her statement.

"It came to my attention late Saturday night that there would be a dress worn to the Oscars that is remarkably similar to the Valentino I had intended to wear, and so I decided it was best for all involved to change my plans," Hathaway told Women's Wear Daily in a statement.

"Though I love the dress I did wear, it was a difficult last-minute decision as I had so looked forward to wearing Valentino in honor of the deep and meaningful relationship I have enjoyed with the house and with Valentino himself. I deeply regret any disappointment caused," she added.

Hathaway, however, told E! news host Ryan Seacrest on the Oscars red carpet on Sunday that she "didn't know what she was wearing until three hours" before arrived to the Academy Awards.

Hathaway has worn designs by Valentino for multiple occasions over the years. When she got married on Sept. 29 to her husband Adam Shulman at a private residence in Big Sur on the California coast, she wore custom wedding dress and veil designed by Valentino.