At 16, she began her career as a fashion model. Diaz signed with top modeling agency Elite Model Management. She modeled for designers such as Calvin Klein and Levi's.
According to reports, an ex-SAS squad and dog unit were carefully located around the area and in the trees to ensure passers-by or fans could get a glimpse of the shoot.
Modesty screens were also put up around the set for the midnight shoot on Tuesday.
“It was like a military operation. Producers had thought of everything to stop any intruders possibly getting a glimpse,” Contactmusic quoted source as telling the Sun newspaper.