Revealing mistake: When Preston crashes into Quigly in the bowling ball to send him into the pool, you can both see and hear the launchpad that actually launches him.
Blank Check (1994)
1 revealing mistake
Directed by: Rupert Wainwright
Starring: James Rebhorn, Brian Bonsall, Jayne Atkinson, Karen Duffy
Other mistake: When Preston puts the VR headset on Beiderman, he reacts in a very strange manner. Yes, it's better for the movie, but it doesn't make sense in-universe, as it would take very little effort to simply lift the headset off to remove it.
Comuter Voice: Ralph and Damien sleep butt to face, butt to face, butt to face.
Trivia: The castle that is seen in the movie is an actual house in Austin, Texas, where much of the movie was filmed. An interesting point is that it is merely a facade; the rest of the house behind it is normal.
Question: How did Preston's backpack end up in the wide park area even though he left it in the woods?