The poster in Debbie's apartment was for "The Australian Film Festival in New York", a real life film festival that played in NYC during the early 1980s. The poster was intended to reference Olivia Newton-John's Australian identity.
After striking box office gold in Grease (1978), the 20th Century Fox studio re-teamed John Travolta and Olivia Newton-John five years later for this romantic comedy. To date, this is the second and final star teaming.
Although she'd starred in three theatrical movies and had made countless TV appearances in the 15 year prior to this movie, Olivia Newton-John was insecure about her acting abilities and decided to enroll in acting training in preparation for the film.
While shooting a scene on-location in New York City, Olivia Newton-John was bitten by a dog named "Pascha." The Collie/German shepherd mix lived in the neighborhood and was hired along with his owner as an extra. When Olivia approached them asking to pet the dog, the owner warned her that Pascha was afraid of crowds. Leaning in to pet him anyway, she was bitten on the hand. Needless to say, this ended Pascha's movie career, and they filmed the scene without him. Olivia braved the injury and kept on working.
Top-billed as an earthling in this angelic heavenly comedy was John Travolta. In the film, there are four angels: Charlie, Earl, Gonzales, and Ruth. They have all been running Heaven for the last twenty-five years. Travolta would get to portray an angel himself later on in the movie Michael (1996).
Olivia Newton-John's hit "Twist of Fate" song was nominated for Best Short Form Music Video at the 27th Grammy Awards in 1985. The song was the last of Olivia Newton-John fifteen Top 10 chart-toppers. The song went to No. #4 in Canada and Australia, and to No. #5 in the USA. Billboard ranked the song at No. #42 on its Top 100 Singles of 1984 list.
Following the success of Grease (1978), John Travolta and Olivia Newton-John spent several years trying to find another vehicle to star together in before settling on this film. Among the projects they considered but ultimately passed on were a remake of Stairway to Heaven (1946) and a film adaptation of the Neil Simon play "They're Playing Our Song."