Shadowlands

Released 1993
Stars Anthony Hopkins, Debra Winger, Edward Hardwicke, John Wood, Michael Denison, Joseph Mazzello
Directed by Milos Forman
 
Based on a true story, C.S. Lewis (Hopkins) is a world-renowned writer and professor. Unmarried, he leads a gentleman's life filled by intellectual pursuits, remaining untouched by any great passion until he meets Joy Gresham (Winger). Joy is a feisty, abrasive New York divorcee whose sharp-edged, no-nonsense attitudes take Lewis by surprise. Bursting unexpectedly into Lewis's world, Joy shocks his associates and awakens him to deep emotions he has written about, but never experienced. Slowly he opens his heart to this woman, and their romance shatters the walls of his cloistered world. But life is made up of delicate balances, and Lewis must confront a terrible truth: that a heart awakened to great love is also opened to great pain.

Summary from Netflix