EXCLUSIVE: The starry packages keep on coming at theCannesmarket.

More cast are set to join the ensemble.

Unbeknownst to everyone, she is hiding an extraordinary secret.

Celia Imrie, Isla Fisher, Andie MacDowell, Rupert Everett, Franco Nero, Viola Prettejohn and Isabella Rossellini.jpg

Clockwise Top L-R: Celia Imrie, Isla Fisher, Andie MacDowell, Rupert Everett, Franco Nero, Viola Prettejohn and Isabella Rossellini.jpgRachell Smith/Getty/Greg Williams/Getty/Courtesy/Gilbert Flores/Getty Images

And Gracie starts to peel back the secret past she has not faced in over 40 years.

Filming in Italy and UK is due to start before the end of the year.

Chris Coen (Funny Games) produces with Eleonora Granata Jenkinson for Melograno Films (Monica).

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Celia Imre is represented by Curtis Brown and Magnolia.

Isla Fisher is represented by UTA, Curtis Brown Group, and Sloane Offer.

Andie MacDowell is represented by Gersh Agency and RMS Productions.

Rupert Everett is represented by Saskia Mulder at The Artists Partnership.

Franco Nero is represented by Michelle Burke at Gavin Barker Associates.

Viola Prettejohn is represented by Maya Hambro at Insight Management & Production.

Isabella Rossellini is represented by Houston Costa at UTA.