The scene showing Hank (Fred Ewanuick) outside the coffee shop protesting and Brent (Brent Butt) walking out to break his sign, and smack him upside the head was all actually done in one long take. According to the DVD commentary, Brent Butt was stepping over cables and wires while he was outside.
Corner Gas was shot in Rouleau, Saskatchewan, which is approximately 40 minutes SE of Moose Jaw. The set is still in place, as a new Corner Gas movie has been filming over this summer, due to be released around Christmas 2014.
The actual Bar at the Dog River Hotel was used as a shooting location throughout the run of the series. The interior of the bar was remodeled after the end of the show. For the movie, the interior of the bar had to be reconstructed on a sound stage in Regina, SK.
In the beginning of the show, Brent displays a poster for the movie, Decoy, starring Peter Weller.