Brave (1970)

Uncle Jack, a 15-year military veteran with a history of substance abuse who works as an entertainer at a local Native casino. At his estranged brother's funeral, he meets Jillian, his young orphaned niece battling liver cancer. Jillian’s dying wish is to find a home for her beloved dog, Carl. Though she sees potential in Jack as a caretaker, he struggles to care for himself. Jack turns out to be a liver donor match for Jillian, but his years of alcohol abuse have rendered him unsuitable.