Continuity mistake: At the beginning of the movie when the main character and his friend are sitting in the break room having a conversation about getting old and their friends dying, the straws in the drink cups on the table and the paper sleeves on the straws appear halfway through the conversation.
Factual error: In the scene when they are locked in the garage, they attempt to use vehicle air bags to propel themselves through a garage vent in the roof. It is absolutely impossible for a air bag to deploy by jumping on it. A air bag requires specific battery voltage and resistance supplied by a air bag control module to deploy a air bag. The physical act of jumping on it will not deploy it.