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The television film will be a reboot of the 1980 romance which starred Brooke Shields and Christopher Atkins as two teens marooned on a seemingly deserted island.
Brenton Thwaites and Indiana Evans will play the lead characters in the updated version.
Christopher Atkins will reportedly be making a small cameo appearance in the movie.
According to Deadline, Richards will play the mother of the Evans character, searching for her lost daughter.
The 41-year-old actress recently announced that she will be launching a range of hair care products.
She was recently spotted attending one of her children's softball games with ex-husband Charlie Sheen, who she says she has been getting along with these days.
