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May 19, 2015 04:35 PM

Love is in the air!

Josh Brolin and fiancée Kathryn Boyd stepped out at the Cannes International Film Festival, making their first public appearance as a newly engaged couple.

Though she was glowing from head to toe in a lavish red gown, all eyes were on the new accessory Boyd was rocking on her finger: her engagement ring!

The couple are in Cannes to celebrate the premiere of Sicario, a crime drama starring Brolin and Emily Blunt, along with their new engagement.

The Labor Day actor, 47, popped the big question about two months ago, a rep for the actor confirmed to PEOPLE.

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The happy couple appeared to be celebrating the engagement in Cabo San Lucas on Friday, a source tells PEOPLE. Packing on the PDA, the couple “were all over each other – taking selfies and kissing,” while enjoying a dinner with about 20 guests.

The duo have been dating since at least last February, when they were spotted getting cozy during a vacation in Rome.

This will be the third marriage for Brolin, who separated from wife of eight years, Diane Lane in 2013. The Oscar nominee’s first marriage to Alice Adair, with whom he had two children, Trevor, 26, and Eden, 20, ended in 1994.

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