Endless Love is a 1981 American romantic drama film directed by Franco Zeffirelli, starring Brooke Shields and Martin Hewitt. The film's theme song, also titled 'Endless Love', was written by Lionel Richie and performed as a duet by Richie and Diana Ross, becoming one of the best-selling singles of all time.
Um Lionel, we're going to do a instrumental for a movie. It's called uh In This Love.
""Lionel Richie discusses writing the song 'Endless Love' for a movie, initially as an instrumental, then evolving into a duet with Diana Ross. The movie is the context for the song's creation."