The guy wearing the bulletproof vest is always shot and killed. If someone falls in water, they are automatically alive, regardless of the height they fell from. Moreover, if they are incapable of swimming, all they have to do is flap their arms and scream hysterically and they somehow manage to stop sinking. Super high-tech security codes are always broken by a kid. Usually by accident.
Heroes have clothing made of a magical material that never gets torn or dirty.
Central characters can have loud conversations in public places and for some reason, no one overhears them. The word empty is unheard of. Guns never need reloading, mobile phones never need recharging and lightbulbs last forever. Hitching a ride with a total stranger is always accomplished in under a minute. The main man is always taller than the leading lady, of similar build, nationality and personal interests.