I Loved a Soldier (also known as Invitation to Happiness) is an unfinished 1936 American romantic-comedy-drama film directed by Henry Hathaway and produced by Paramount Pictures. It stars Marlene Dietrich, Charles Boyer, Walter Catlett, Lionel Stander, and Margaret Sullavan.The Paramount picture was intended to be a remake of Pola Negri's 1927 Hotel Imperial, which was based on a play by Lajos Bíró.