Corrected entry: When Jack swims towards the edge of the tar pool it's visible that he swims through a channel filled with black water rather than a actual pool as you can see it spill over the edges and flow back inside.
Corrected entry: In the scene where Arnold crashes into the taxi cab, he says 'this is a 1989 Mercury Sable, standard driver's side airbag.' An airbag was not available on that model until 1990.
Corrected entry: When the stick of dynamite falls in Slater's car, he goes onto two wheels to get the dynamite in his hands. When he first goes on the two wheels, if you pause it, you can see the face of the stuntman. (Noticeable more in full-screen video and widescreen DVD.).
Corrected entry: In the car chase scene, the black van that is chasing Jack & Danny follows Jack's car up the side of the bridge and lifts into the air. However, the car begins to catch fire/explode before it hits the ground, where really the impact of hitting the ground is suppose to cause the explosion. (00:29:50)
Corrected entry: When Danny is trying to convince Slater that he is in a movie during the Blockbuster scene, Slater states that everyone in LA has a phone number that starts with 555. Danny says that there can only be 9,999 phone numbers in the city with 8 million people. However, he forgot to take into account the number 555-0000 which would make 10,000 total numbers available instead of 9,999.