George Clooney and Pamela Anderson have become Hollywood’s most unlikely couple after the pair was spotted frolicking together on a romantic, fun dinner date.

Oscar-winner Clooney booked a private room at Sherman Oaks, Calif., restaurant the Valley Inn, and entertained the former “Baywatch” babe there on January 7, according to reports.

And since that evening, which ended with Anderson sitting on her date’s lap, the odd couple has been spotted out and about, enjoying dog walks together.

A pal says, “George and Pam have been determined to keep this one quiet.”

The first look appeared at Moviefone, and shows the original gang of eleven, led by Clooney’s character Ocean, as well as that ever-present thorn in their side, casino mogul Terry Benedict (played by Andy Garcia). Although not in the poster, Al Pacino has a prominent role in the third Ocean flick as a hotel-casino owner. Thirteen is about getting even. It’ll be the last chorus for Danny Ocean’s gang, and director Soderbergh intends to end the star-studded trilogy on a high note.