Rachel McAdams, Michael Sheen Step Out; Couple Spotted Kissing (PHOTOS)

Rachel McAdams stepped out with her birthday-boy beau, Michael Sheen, Sunday for a leisurely day in Beverly Hills.

Paparazzi snapped the pair grabbing a bite to eat and engaging in a little PDA post-lunch. Sheen celebrated his 43rd birthday with his girlfriend of almost a year.

The duo became close while filming the Woody Allen film "Midnight In Paris" and were rumored to be linked in the fall of 2010, but didn't go public with their budding romance until the Cannes Film Festival last May. McAdams confirmed it to People after they hit the red carpet together.

Both have gushed about their partner. McAdams recently told Stella magazine that the secret to her succcessful relationship with Sheen is to spend sufficient time together, saying "Michael and I never spend more than three weeks apart ... but you have to be quite adaptable in this business whether you are in a relationship or not." From the looks of the sweet moment these two shared, they just might be on to something.

Take a look at the adorable pair below and for more photos, head over to Bauer Griffin.

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