Benz's camp told People the ceremony took place at a historic home in the trendy Los Feliz neighborhood of LA.
The event had a Mexican flavor to it in honor of Cinco de Mayo and the groom's Mexican heritage, People said. Orosco, a 39-year-old marketing executive, met Benz five years ago and popped the question last year.
The couple have been living together in Los Angeles.
Moore to attend retreat in to avoid Kutcher's wedding
Lytro unveils camera that can focus a photo after shooting it