To call Mandy Walker precise would be an understatement. Early this fall, the Australian cinematographer, who has previously worked on "Hidden Figures" and "Australia," is hard at work color-correcting scenes from the October romantic drama "The Mountain Between Us" from director Hany Abu-Assad. She homes in with eagle-like precision on the film's stars, Kate Winslet and Idris Elba, achieving the seemingly impossible task of making the actors – not to mention the picturesque mountain serving as a backdrop – appear even more beautiful. "Every little decision that you make affects how the audience experiences the film," Walker notes. "And I think they should feel the images like it's an emotion." The film, about two strangers stranded together atop a remote snow-covered mountain following a plane crash, was a challenge to shoot last December because, as Walker puts it, "it was the height of winter in British Columbia's Purcell Mountains."