Okay, so who is playing in this game? 

The Toronto Argonauts and the Calgary Stampeders. Calgary will be the team wearing red jersey and Toronto will be in blue. 

Why is it called Canadian football? Are they playing soccer? Just call it soccer, silly Canadians.

Canadian football is a lot like American football except that it's not like American football at all. The skill level is closer to D-II NCAA football. The most notable difference are in the numbers: the field is 10 yards wider and five yards longer, there's an extra player on the field, the ball is bigger, and teams only get three downs instead of four. There's also a rouge, the rules of which are too complicated for me to explain here, but it involves kicking and awards a team a single point. It will probably happen at least once during the Grey Cup.