Live Free or Die Hard

It took four months to assemble and combine archive footage of past American presidents from Franklin D. Roosevelt to George W. Bush to create the televised warning from Gabriel. The goal was to create a video representation of a ransom note.

The F-35 Lightning II shown in the film uses its VTOL engine to hover and shoot at its target. The VTOL (Vertical Take Off and Landing) engine is purely for that; taking off and landing. Hovering takes an incredible amount of fuel, and can overheat the hover engine since its duty cycle is not 100%. Additionally, the difficulty in making the craft successfully hover would make it virtually impossible to also track and fire on a target. As such, pilots are never, ever trained in or participate in hovering attacks.

After the 20th Century Fox opening logo has been on for a while, it suddenly "short circuits", causing flickering as the the searchlights fade, climaxing in a total power outage.

The unrated DVD (also known as the Ultimate Action Edition in some territories) contains frequent use of strong profanity and stronger violence (bullet hits are more graphically seen with blood spraying out). Also, McClane's signature line is now heard in full, as the gunshot does not obscure the latter part of it.

Edited from The Sum of All Fears (2002)