See photos of Kate Bosworth's wedding dress -- an Oscar de la Renta with a 8-foot train -- and ring from her Aug. 31 wedding to Michael Polish in Montana. Credit: FameFlynet

Introducing, Mr. and Mrs. Polish! Kate Bosworth was a gorgeous bride at her Saturday, Aug. 31 wedding to Michael Polish in Philipsburg, Montana. In new photos from the big day, the 30-year-old actress looks stunning in her ivory strapless Oscar de la Renta ball gown featuring a 8-foot-long, 16-foot-wide train during the intimate ranch ceremony.

The Straw Dogs actress and film director, 42, tied the knot in front of a small gathering of around 70 members of their family and friends at The Ranch at Rock Creek. 

Bosworth said "I do" on a bluff after arriving in a horse-drawn stagecoach, and the couple read their own vows. For the reception, the bride changed out her traditional gown and wore a floral embroidered tulle dress.

Just two days after their ceremony, the spouses were spotted arriving at LAX Airport together in L.A. on Monday, Sept. 2. The newlyweds looked totally in love as they made their way through the airport. 

Looking pretty in a a pink dress, black sweater and brown ankle boots, Bosworth had a huge smile on her face as she held onto her husband. Big Sur director Polish had an equally big grin on his face while walking with his arm around his wife. The couple, who became engaged in August 2012 after one year of dating, also showed off their platinum wedding bands to photographers.

More photos from Bosworth's wedding will appear in the winter issue of Martha Stewart Weddings.