He served in the Free French Forces, and receiving both the Légion d'Honneur and the Croix de Guerre for his actions.

[1] After the war, Aumont resumed his career, in Hollywood as well as his native France, typically playing suave romantic leads.

He migrated from the unoccupied zone of Vichy France to New York City, then to Hollywood, California to pursue his film career.

General Diego Brosset, commander of the 1st Free French Division, to whom Aumont was aide de camp, was killed.

[3] After the war, Aumont quickly resumed his movie career, starring with Ginger Rogers in Heartbeat (1946) and as the magician in Lili (1953) with Leslie Caron.

In the mid-1950s, Aumont began working in television, appearing on several anthology programs, such as Robert Montgomery Presents and as a guest on the show What's My Line?.

In the 1960s and 1970s, he appeared in various theater productions, including the musicals Tovarich with Vivien Leigh, Jacques Brel Is Alive and Well and Living in Paris, South Pacific, and Gigi.

The couple starred in John Paul Jones (1959), in which Pavan played the romantic interest of the lead, and Aumont appears as King Louis XVI.