Casa Loma was the unfinished dream mansion of Canadian industrial magnate Henry Pellatt. A self-made millionaire, Pellatt was derided by fellow aristocrats for nouveau-riche pretentions: the house and its décor considered by many an ornate fake. Its original contents were sold at Pellatt’s bankruptcy auction in 1924. Today the building is a museum. The movie has three sections—the first in a cellar tunnel, the next in a first-story workroom near the stables, the third in the tower’s summit.

• Documentary