Naomi Watts, Robin Wright Sizzle in Sydney

It was hot on the beach in Sydney, Australia, and not just because of the sun. Robin Wright and Naomi Watts looked scorching in their beach bods for their new movie, "The Grandmothers."

These two moms aren't exactly in rocking chairs yet. Wright, 45, and Watts, 43, lounged in the sand and mixed it up with their costars, Xavier Samuel and James Frecheville.

The actresses play friends who fall for each other's sons -- and then apparently romp and wrestle on the beach. The movie is directed by Anne Fontaine, who also directed "Coco Before Chanel," and is based on a short story by Doris Lessing.

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But the story today on the beach is about two women who look beautiful in their bathing suits. Wright, who is divorced from actor Sean Penn and was last seen in "The Girl with the Dragon Tattoo," has never looked better. While Watts, who has two kids with partner Liev Schreiber, sported a teal halter-style one-piece. She may expect to be in more bikini shots playing the glamorous Princess Diana in "Caught in Flight."

No question about it, the two can definitely raise the temperature.

See the trailer for 'The Girl with the Dragon Tattoo':

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