Aykroyd had been a cast member himself from 1975-1979 onSNL, and took one of he major film roles.Although scripted, the film was noted for numerous ad-libs and script modifications.Columbia Pictures took a risk with the supernatural sci-fi comedy involving the paranormal by financing the film""s extensive special effects, involving techniques such as miniatures, stop-motion, puppetry, rotoscoping, and cel animation.Mary Kate, his ""spinster"" sister, gleefully thinks he has finally received his come-uppance, and stands up to her formidable brother:Mary Kate: Good for Widow Tillane.While the young girl was being examined by a doctor,her ambitious-minded mother Princess Johanna Elizabeth (Olive Tell) barged in and insisted: "How often do I have to tell you that Sophia Frederica is no longer to play with toys.The lone band of men led by Pike Bishop (William Holden) have come to the end of the line and no longer are living under the same rules in the Old West.Its producer, 28 year-old Warren Beatty, was also its itle-role star Clyde Barrow, and his co-star Bonnie Parker, newcomer Faye Dunaway, became a major screen actress as a result of her breakthrough in this influential film.