Anne Hathaway 'started throwing a fit' over Amanda Seyfried's Oscar gown

Amanda Seyfried reportedly made Anne Hathaway quite angry the day before the Oscars, causing Anne to change her dress at the last minute.

Hathaway previously apologized to designer Valentino for not wearing the dress he designed for her as planned, stating, “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. 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.”

Sources are now saying that the similar dress, which caused the switch, was worn by Hathaway's Les Miserables co-star Amanda Seyfried.

The source told Us Weekly that upon seeing a photo of Seyfried's dress, "Anne was like 'WTF?!' She started throwing a fit!"

In response, Seyfried became flustered and left rehearsal, the source stated, "Amanda didn't want to deal with it and left."

A second source also told Us Weekly that Hathaway was a bit difficult leading up to the big show. "Anne made the fashion, make up, hair, and jewelry teams wait at her home for hours as she decided what to do about the dress debacle."

Hathaway ultimately ditched the Valentino gown and opted for a Prada piece, which was not exactly a hit with viewers.

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