Between partying with Ryan Reynolds and Blake Lively in New York City to a West Coast dinner with old buddy Keanu Reeves, Sandra Bullock is the most popular girl in Hollywood right now.

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And on Thursday night, the 47-year-old actress lit up the amFAR Inspiration Gala at the Chateau Marmont in L.A. Not only did her agents spend $14,000 on an Andy Warhol print as a gift for her 1-year-old son, Louis, but Bullock looked stunning in a sparkly metallic mini dress, chic black blazer and smokey eye makeup.

PHOTOS: Adorable pictures of Louis

The Oscar winner was on hand to honor the late Elizabeth Taylor, who helped created amfAR in 1985.

"Earlier this year, the world lost a radiant woman of courage and compassion. She lives on in every person she touched," Bullock said of the actress and philanthropist, who passed away at age 79 in March.

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