Filming on a sun-drenched beach in Australia? It's a hard life being a movie star.
Our favourite look so far from the star (who is set to play Princess Diana in the upcoming biopic), is this turquoise swimsuit. Watts looked stunning in the simple but flattering one-piece, and teamed with a floppy fedora and square shades, her beach chic look was perfectly complete.
Let us know how you rate Naomi's on set style and for some rather more revealing swimwear, see Rihanna's latest holiday looks below.
Prepare for the beach and shop swimming costumes below at MyDaily Store:
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