Halle Berry was spotted in South Africa yesterday gettin' chummy with "Unfaithful" star Olivier Martinez -- but he's only her leading man in their new shark flick.

Halle Berry and Oliver Martinez
The duo, who are currently filming "Dark Tide" in Simons Town, were spotted arm-in-arm while shooting a scene on set.

As for her real love life, Halle recently split with baby daddy Gabriel Aubry -- but she tells Vogue that the two are "still friends" and "love each other very much."

Check out her stunning Vogue shots here!