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 UK VHS cover and Polish DVD cover. However it is missing on the US VHS, Canadian VHS, USA DVD, and Laserdisc.
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.
All 3 boys are 14 in this movie however in real life, Dominic Zamprogna was born in 1979 so he was 18 at the year of filming, Stuart Stone was born in 1977 so he would have been 20 at filming, and Devon Sawa was born 1978 making him 18 at the time of filming.