I'm not feeling Hilary's feathery Gucci gown, it's too much and the whole feather hem thing is so 2009.
Amy Adams' sparkly cap-sleeve gown by L'Wren Scott evoked old Hollywood, especially with the hair but the emerald and diamonds were a bit of a turn off.
Marisa's dress was a vintage Charles James and it's not my favourite - the hemline is a little too much.
Natalie Portman wore a purple silk-chiffon Rodarte dress with an off-shoulder neckline. This particular shade of purple (more like plum) does wonders for pregnant celebrities! Jessica Alba wore a beautiful Marchesa gown to the Oscars in 2008 in a similar hue. I'm loving those swingy earrings from Tiffany & Co. Scarlett Johansson wore a lacy Dolce & Gabbana dress with high neck and a drop down back (not pictured) - it's just too much lace for me.

Image Sources: justjared.buzznet.com