The 29-year-old beauty is to appear in the role of Summer Quin alongside her 'San Andreas' co-star Dwayne 'The Rock' Johnson in the eagerly movie based on the popular TV series.

Johnson confirmed the news on his Instagram account, writing: ''IT'S OFFICIAL: Want to welcome the talented and gorgeous @alexannadaddario to the cast of #BAYWATCH for the role of 'Summer'. Alex is a one of kind woman (I know from experience) and can't wait for you guys to see her own the role.

''The female roles of #BAYWATCH have become extremely hot properties around Hollywood and as promised, the quality women we'll cast are stepping into these roles to have fun and make them iconic for the world to enjoy.

''The #BaywatchFamily so far consists of a tatted up bald guy named Rock, the cool, yet extremely unattractive Zac Efron, the talented and gorgeous Alexandra Daddario...and some big casting announcements coming soon. And juuuuust wait til you guys see who we cast for the iconic role of 'CJ Parker'... (sic)''

Alexandra is rumoured to have seen off competition from the likes of Nina Dobrev, Ashley Benson, Alexandra Shipp, Shelly Hennig, Bianca Santos and Denyse Tontz to secure the coveted role.