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Gabrielle Anwar and financier and Miami restauranteur Shareef Malnik are married, a representative for the happy couple tells PEOPLE exclusively.

The intimate outdoor ceremony was held as the sun set over the rolling hills of The Ranch at Rock Creek in Phillipsburg, Montana, on Sunday.

Of the big day, the bride tells PEOPLE: “Hearts were cracked open, in a ritual of love among family and friends in wild western 1800’s style beneath big sky Montana. A truly magical weekend.”

The Western-themed wedding weekend culminated in a gorgeous ceremony where 150 guests rocked 1800s Wild West Period Costumes – the dress code was described as “Butch Cassidy & The Sundance Kid meets Little House on the Prairie meets 1800s Bordello”.

A talented seamstress and designer in her own right, Anwar, 45, made her own wedding gown working from patterns of the late 1800s. Fashioning pieces of Victorian blush lace lingerie between the bones of an ivory bodice, the actress also designed a removable silk bustle to keep with the 1800s Wild West theme.

The couple kept the wedding party all in the family: Anwar’s daughter, Willow, 21, was the maid of honor; her son Hugo, 14, was ring bearer; and daughter Paisley, 11, was the flower girl. On the groom’s side, Shareef, 57, had his father, Al Malnik, as his best man, while his son Yaseen, 30, was a groomsman and his grandson Shams, 6, served as banner bearer.

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After the ceremony, which was presided over by a Tantric Kabballah Rabbi from Holland, who performed passages from his book The Mystery of Love, a gospel choir led the whole party to a beautiful barn for the rollicking reception.

Guests, including director Brett Ratner, a long-time friend of the groom, and Saving Mr. Banks screenwriter Kelly Marcel, will celebrate with the newlyweds into the early morning hours.

Malnik, who owns The Forge restaurant in Miami, proposed to the England-born Anwar at Big Sur in June, 2014.

Best known for her work on The Tudors and in her starring role on USA’s Burn Notice, Anwar met Malnik in 2010. This is her second marriage.

The couple and their guests shared photos of the pre-wedding festivities on Instagram.

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