Amanda Seyfried arrived at the world premiere of "Dear John" in Hollywood yesterday wearing Tinseltown's latest trend: an extremely low cut dress revealing quite a bit of cleavage. The blue and silver dress looks like a pillow case split down the middle to, ahem, enhance the view of the "pillows." See lots more photos after the jump!

The "Big Love" star decided to quit the HBO series because she felt producers weren't maximizing her potential. Seyfried admits she made the decision so she can focus on landing more film roles that will allow her to show off her talents. She told Ok! Magazine, "My career is going places and I wasn't able to do the things I wanted to. And I had to live in L.A."

Seyfried stars in "Dear John" with Channing Tatum. The film is based on author Nicholas Sparks' novel about a young soldier who falls for an idealistic college girl.

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