Can't fly a drone without a permit within (I think it's) 8 miles (12 km) of an Airport in Canada. Legally that covers almost the entire city where I live. Same thing within National Park boundaries, except the permits are even harder to obtain there, and you run the risk of a Fish and Wildlife violation ("worrying game").
Even in non-permit situations, there are tight regulations (prohibited at gatherings of groups of people, not sure of the number but a hundred would be no-no, no flying above 2,000 feet, etc). Drones are legally considered aircraft and come under Transport Canada regulations, plus other civil jurisdiction.
The permits are narrow (times, dates, purpose, flight path). Nasty fine if you are caught, nasty fine for the F&W violation (four and five figures) with possible Criminal charges if something happens, with or without the permit.
I have a buddy who does motion and still photography, all kinds all over the world, and there is extensive drone use in that field today. He deals with this kind of stuff on a routine basis, but he tells me it's easier to film almost anywhere compared to Canada although a lot of his work is in remote locations (he does fishing shows) where it's mostly permit-free, but of course he has to check.