(At 1:41:00) When Louis is in the van passing Central Park, the banner he sees shows that the concert's pianist is Lionel Wigram, who is actually the Executive Producer of the movie.
Two of the songs that Jonathan Rhys Meyers' character, 'Louis Connelly' sings, 'This Time' and 'Break' were considered as nominees for the category of 'Best Original Song' in the '80th Annual Academy Awards'
August plays a Gibson J200, also used by Elvis Presley throughout his career. During their encounter in the park, he and Jonathan Rhys Meyers' character switch guitars. Rhys Meyers played Elvis in Elvis two years before this movie was released.