To prepare for the film, Richard Gere, Mike Figgis and Eric Roth did a tremendous amount of research and studying on manic depression (now called bipolar disorder). Gere met with several people who have the disorder to gain insight and knowledge on what to accurately portray.
Richard Gere's character rides a Triumph Bonneville motorcycle in the movie. San Diego Antique Motorcycle Club president Art Bishop lent his Triumph Bonneville to the film makers for a scene at short notice. Eagle-eyed filmgoers may spot that Bishop's bike is a 1977 750cc T140 Triumph Bonneville whilst a 1966 650cc T120 Triumph Bonneville is in scenes shot earlier. Both Triumphs are finished in blue and white.