The Silver Stallion (with real palomino stallion and real wild brumbies - oh, all right, and the real Russell Crowe. But it was before he was really, really famous )

                   - budget: some $60 million 

Clash of the Titans (the original - not that CGI remake - with stop-animation, slightly jerky flying horse Pegasus)

                   - budget: around $16 million

Monty Python and the Holy Grail (with Python actors prancing and a man banging coconuts together)

                   - budget: reputedly less  than £150,000.