Celeb Fashion Hit or Miss?

Vote on this week's styles including Sienna Miller, Julia Roberts and more stars! You decide – are they fashionistas or flops? By Melissa Liebling-Goldberg

ASHLEY OLSEN

The star is low-key in a boyish black blazer from her own line The Row and Earnest Sewn skinny jeans at the Cinema Society and ACLU screening of Trumbo in N.Y.C.