Air Canada's Olympic-themed Boeing 777 was unveiled in Vancouver Wednesday.Air Canada's Olympic-themed Boeing 777 was unveiled in Vancouver Wednesday. (Courtesty of Air Canada)

It's one of the biggest shows on earth, so why not have one of the biggest ads to promote the Vancouver 2010 Games?

Olympic sponsor Air Canada officially unveiled its Olympic-themed airplane Wednesday, a behemoth of a Boeing 777 painted in bright Games colours and images.

Air Canada's Chief Executive Officer Calin Rovinescu called the Olympic plane an unparalleled advertising opportunity in a tough economic climate.

The airline is one of several major Games sponsors struggling in the current economy and is seeking to earn millions of dollars to bolster its bottom line.

Much of the airline's contribution to the Olympics will be in services, such as a new program giving athletes the same perks as first-class customers.

The Olympic plane will be used for long-haul trips, potentially on routes between Europe and Vancouver that would be added specifically for the Games.