Studiocanal ‘s new genre division Sixth Dimension is heading into production this summer on Sean Byrne ‘s violent high-stakes thriller The Mannequin starring The Fighter Oscar winner Melissa Leo . Byrne is directing and writing. Studiocanal is launching global sales at Cannes for Mannequin and will release the pic theatrically in their own territories of UK, France, Germany, Benelux, Poland, Australia and New Zealand. Elevation Pictures has the feature in Canada. Sean Byrne Byrne was here at last year’s Cannes with his Australian shark thriller Dangerous Animals in Director’s Fortnight which IFC Films handled in the U.S. Byrne said in a statement, “After wading through bloodied waters together on  Dangerous Animals , I’m thrilled to be alongside my friends at StudioCanal’s Sixth Dimension, I can’t wait to unleash The Mannequin  on the big screen.…