Model Gemma Ward cast in 'Pirates 4'

Australian supermodel Gemma Ward has boarded the cast of Pirates Of The Caribbean: On Stranger Tides.

According to The Courier Mail, the 22-year-old will play a mermaid in the blockbuster and shoot her scenes in Hawaii this August.

Ward's acting credits include The Black Balloon and horror movie The Strangers.

The latest Pirates film will begin filming this week under the direction of Chicago helmer Rob Marshall. Johnny Depp and Geoffrey Rush are returning to the cast, joined by franchise newcomers Penelope Cruz, Stephen Graham, Sam Claflin and Astrid Bergès-Frisbey.