Justin Bartha. Picture: Reuters

The Hangover star Justin Bartha's real-life wedding has gone off without a hitch after he walked down the aisle with Lia Smith.

The 35-year-old wed the personal trainer in a sunset ceremony on the island of Oahu in Hawaii over the weekend.

Exchanging vows around a lagoon at the Kualoa ranch before 20 guests, including Reese Witherspoon and husband Jim Toth, Smith wore a flowing white gown while Bartha kept it simple in a smart black suit.

Bartha's The Hangover co-star Ken Jeong and Jesse Eisenberg also attended.

Bartha proposed to the brunette beauty while on vacation in Big Sur, California last May.

Bartha famously played Doug Billings in the big screen Hangover comedy trilogy, whose bachelor party turns into a disaster during the original movie.

The West Australian

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