Watch Bombuj. Focusing on the sport of chuckwagon racing at the Calgary Stampede, captured through a mix of aerial, POV, and ringside footage, the film is ahead of its time in the way it captures adrenaline-pumping action. This short documentary offers a ringside view of the chuckwagon race, star attraction of the world-famous Calgary Stampede. Once ponderous Percheron and Clydesdale draught thundered around the course. Now they are racers, and it takes a firm hand to guide such horsepower.