Dangar

Factual error: Many times in movies, we can see the hero running into a burning building or approaching a burning vehicle to save someone, then escape from the flames with only a few black coal spots on his face. In reality, the extreme heat would make it impossible for an unprotected person to get THAT close to fiercely burning fire. Even if he can overcome his natural instinct, the pain from hot air would be unbearable (it's nearly as excruciating as direct burning) and leave him with severe injuries.

Dangar

Factual error: In movies including fighter jet battle scenes, the pilot bailing out from a terminally damaged plane can walk away immediately after touching ground. In reality, emergency ejection is very stressful to the human body, even if trained. The least you can expect is back pain, dizziness, ringing ears and numb legs for days, but the pilot can even fall unconscious from the sudden shock while descending. EE is much more unpleasant and less heroic than usually depicted in films.

Dangar

Other mistake: In racing scenes, the protagonist usually has unfortunate disadvantages through the race (issues at the start, unplanned pit stops due to technical problems, etc...) and falls back drastically. Still, after having a sentimental flashback or hearing his girlfriend over the radio, the camera shows him changing into the top gear, pushing the throttle all the way down (the heck was he doing so far then?), and he catches the pack in a matter of seconds then overtakes all opponents with ease.

Dangar