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Blake Lively showed off her mile-long legs in a Marc by Marc Jacobs mini and Christian Louboutin stilettos when she joined Anna Faris at the 2011 Ghetto Film School Spring Benefit, held at The Standard Hotel in New York City. After presenting director David O. Russell with the Champion Award, Lively made a quick change into a flirty pastel dress and fedora before dashing a few blocks east to meet Leonardo DiCaprio for a late-night dinner at The Darby. Click through the gallery to see Emma Roberts, Fergie, Betty White and more stars at last night’s hottest parties!