Lubitsch next directed "That Uncertain Feeling" (1941), a remake of his 1925 film "Kiss Me Again;" an independent production by Lubitsch with Sol Lesser, it was not a commercial success. Lubitsch followed with a film that has become one of his best regarded comedies, "To Be or Not to Be", a witty, dark and insightful film about a troupe of actors in Nazi-occupied Poland. He spent the balance of his career at 20th Century Fox, but a heart condition curtailed his activity, and he spent much of his time in supervisory capacities. His next picture was "Heaven Can Wait" (1943), his first color film and another Raphaelson collaboration. The film is about Henry Van Cleve (played by Don Ameche), who presents himself at the gates of Hell to recount his life and the women he has known from his mother onward, concentrating on his happy but sometimes difficult 25 years of marriage to Martha (Gene Tierney).