Lindsay was in London last week for the World Music Awards and to shoot an ad campaign for Miu Miu. One night Lindsay planned to go to Paper, a local hotspot, and she learned that Keira intended to show up there too. According to the Sunday Mirror, Lindsay's people called Keira's camp twice before the outing to confirm what Keira planned to wear that night. Said an insider, "[Lindsay] was adamant she wasn't going to be upstaged." Apparently, the pre-club planning wasn't enough for Lohan because, upon seeing Knightley arrive to Paper in a Vidler and Nixon dress, she ran off to her hotel - The Standerson - and changed her outfit for "the millionth time."

But Lindsay's diva behavior didn't end there. Even though this was the first time she was going to meet Keira, Lindsay did not approach her future co-star herself. Instead, "Lindsay sent a text, insisting Keira come to her. Keira went over - but was then kept waiting as her 'rival' chatted to pals," said the Mirror's source.

When Lindsay finally stalled her conversation to be introduced to Keira, Keira was very polite, despite having waited. She said, "Hi. It's great to finally meet you. I'm really excited about working with you on our film next year." Rather than returning the kindness, Lohan instead said, "Oh, yeah, great," and then turned to her friends and continued to ignore Knightley.