The pair exchanged personalised vows in front of family and friends at Triunfo Creek Vineyards in Malibu Canyon, editors at Usmagazine.com report.
Megan says of their intimate ceremony, "It was everything we wanted it to be and it was so nice after so many years together to finally celebrate our relationship with all of our friends and family. It's nice to have everyone we love in one place finally for all these years to celebrate our love for each other."
The couple met while filming 2007 movie Charlie Bartlett, which also starred Robert Downey, Jr., and they announced their engagement in January last year (14).
The ceremony featured a maid of honour and a best man, but no bridesmaids or groomsmen. Megan adds of their decision, "We felt like there were so many people that we would want to have, include in it, but we decided to sort of keep it simple and just have a maid of honour and best man and be happy that everybody else was there."
The newlyweds are keeping busy after their nuptials, with Tyler due to start his country music tour in December (15), and Megan starring opposite Dwayne 'The Rock' Johnson and Kevin Hart in the comedy Central Intelligence, due out next year (16).