Kate Bosworth Oscar de la Renta Wedding Gown

Actress Kate Bosworth got married yesterday, August 31, to director Michael Polish on a mountain top in Phillipsburg, Montana.  The 30 year-old actress wore two Oscar de la Renta dresses for the occasion, one being a strapless gown. Her husband wore a Brooks Brothers suite.

The couple tapped Martha Stewart to plan the four-day celebration, held at The Ranch at Rock Creek.  Photos from the nuptials will be featured in the Winter issue of Martha Stewart Weddings being released in December.

Guests included her Black Rock co-star Lake Bell and her new hubby Scott Campbell, as well as Justified actor Walton Goggins.

See more from Kate’s wedding on MarthaStewartWeddings.com