Kate Winslet went all in for her portrayal of war correspondent and photographer Lee Miller.

As the lead star and producer of the eponymous biopic “Lee,” Winslet dedicated herself to embodying Miller’s tenacity both onscreen and off. Oscar winner Winslet personally paid the crew’s salaries for two weeks during the indie film shoot, with the feature being helmed by former collaborator and famed cinematographer Ellen Kuras.

“Lee” charts a pivotal decade in the life of American war correspondent and photographer Lee Miller (Kate Winslet) including her work during WWII. The film shows how Miller lived her life at full-throttle in pursuit of truth, for which she paid a huge personal price, forcing her to confront a traumatic and deeply buried secret from her childhood.

Kuras directs from a script by Liz Hannah, Marion Hume, and John Collee. Winslet produces alongside Kate Solomon, Troy Lum, Andrew Mason, Marie Savare,...