Guest Author - Lisa Shea

Vince Vaughn and Ben Stiller star in this campy movie about the underdogs of DodgeBall taking on the ultimate powers in Las Vegas. Check out the mistakes!

Apparently tournament rules and participants are open to interpretation. In the opening scenes you can see dummies out in the audience. The Average Joe's have 7 people on their team instead of the required 6.

The instruction video from 1954 shows a flag with 50 stars - but there weren't 50 states in 1954.

I love 'Deus ex machina' references. The chest manages to flip labels so sometimes it's on the inside and sometimes it's on the outside.

If you've spotted more, be sure to tell us in the forums!