If you watch 'The Boys Club' trailer, on the letter o of 'Boys' you will see a picture of a dead face. This is present on the Canadian VHS, UK VHS cover and Polish DVD, and Netherlands VHS cover. However it is missing on the US VHS, USA DVD, and Laserdisc, and Netherlands DVD.
In the scene where Eric and his friends are coming into the clubhouse when they meet Luke for the first time, you hear Eric say "Yeah and I've got your Doughboys too." The Doughboys are a Canadian rock band. Their songs 'My Favorite Martian' and 'Neighborhood Villains' appear in the soundtrack.
Kyle's full name is Kyle McLarea. This is seen when Kyle's Dad gives Kyle the acceptance letter. Also, in the same scene, you can see that Kyle's address is 761 Sheridan St. Emslie, Ontario M54 3PP Canada.
The acceptance letter that Kyle gets from Airline Training Resources (except it is now called Airline Training International Ltd.) is a real airline company based in Toronto, Ontario, Canada. Also, the airline company Toronto City Centre Airport's address is Toronto, ON M5V 1A1 Canada.