 There were once more than a hundred burger baron locations in Alberta. Now the chain is mostly confined to small towns. But it's still become a notable part of the province's history and culture. Most of those restaurants are owned and operated by Lebanese immigrants. The origins of the franchise weren't widely known until Omar Mualim started investigating. Mr. Mualim is the son of a burger baron and the director of the Lebanese Burger Mafia. This year, the film was nominated for a James Beard Award in the category of Documentary Visual Media.