Dark Victory

Dark Victory is a 1939 American drama film directed by Edmund Goulding, starring Bette Davis and featuring George Brent, Humphrey Bogart, Geraldine Fitzgerald, Ronald Reagan, Henry Travers and Cora Witherspoon. The screenplay by Casey Robinson was based on the 1934 play of the same title by George Brewer and Bertram Bloch, starring Tallulah Bankhead.

In order to allow her a few more months of happiness, Steele opts to keep the diagnosis a secret and assures Judith and Ann the surgery was a success. Ann is suspicious and confronts Steele, who admits the truth. She agrees to remain silent.Judith and Steele become involved romantically and eventually engaged. While helping his assistant pack the office prior to their departure for Vermont, Judith discovers her case history file containing letters from several doctors, all of them confirming Steeles prognosis. Assuming Steele was marrying her out of pity, Judith breaks off the engagement and reverts to her former lifestyle. One day, her stablemaster Michael OLeary Humphrey Bogart, who for years has loved her from afar, confronts her about her unruly behavior and she confesses she is dying. Their conversation convinces her she should spend her final months happy, dignified, and with the man she loves. She apologizes to Steele, and the two marry and move to Vermont. Throughout the film Judith and OLeary engage in arguments about the prospects of a colt, Challenger. OLeary insists Challenger will never make a racehorse while Judith sees him as a future champion, and just before her death OLeary admits she was correct. ........

Source: Wikipedia