Christopher Vourlias “Million Dollar Pigeons,” which had its world premiere this week at Hot Docs, follows a colorful cast of pigeon masters from far and wide who compete in the most lucrative pigeon races on the planet. Variety has been given exclusive access to the trailer, and speaks to the director, Irish filmmaker Gavin Fitzgerald.The third documentary feature from Fitzgerald, the film enters the world of the passionate “pigeon fanciers” who put their reputations and livelihoods at stake in pursuit of ever-growing prize purses.