Marc Summers who plays grandpa tells Tory (Stacey Farber) "I double dare you!" He is known for being the host of Double Dare on Nickelodeon.
Marc Summers was born Marc Berkowitz in Indianapolis, Indiana, to a Jewish family. After consulting with Rabbi Weitzman of Indianapolis Hebrew Congregation about whether to pursue a career as a rabbi or as an entertainer, Rabbi Weitzman told Summers, "As a rabbi, you can help a small congregation a lot, but as a performer you can help a lot of people a little. Summers decided he preferred to help a lot of people, which set his path to becoming a performer.
Stacey Farber was actually born in Toronto, Ontario, Canada to a Jewish family.
Halfway through the movie, Tory and Jay talk while walking down the street. In the background can be seen the office of Portage & Main Press at 318 McDermot Avenue in Winnipeg, Manitoba, Canada. This is the same building that was seen earlier as the exterior of The Party Store, only with the "Portage and Main Press" sign covered up.