Sienna and Mom Get Coyote Ugly

7/11/2006 3:42 PM PDT

Sienna and Mom Get Coyote Ugly

Sienna Miller and her mom Jo donned the latest in Hawaiian hoedown chic while partying in Niagara Falls, Canada Monday night.

The Millers danced the night away at a local casino and were joined by Sienna's "Camille" co-star - and rumored new beau- James Franco.

While the mom and daughter duo opted for matching green floral blouses and pink cowboy hats, James kept it cool in jeans and a blazer.

Sienna may have topped Vogue Magazine's Best Dressed list, but in this getup she has more in common with Anna Nicole than Anna Wintour.