Corrected entry: Booth mentions that JFK did not want Secret Service agents on the bumpers of the car. This is a misconception. His agents repeatedly stated that JFK was more than happy to accept all security that was provided. The only thing he asked was if the security bubble over the car could be taken off when he met people, as he liked to do that. He did not insist on this, however; his security team decided it was fine - with disastrous results, of course.
Corrected entry: The Secret Service massively under-reacts to Leary shooting at the president. Their policy is to keep their weapons off safety so that if they have to they can shoot quicker. They should have opened up on him with a hail of gunfire even if Horrigan was in the way. Watch the Reagan shooting and see how they normally react.
Corrected entry: When Frank is hanging from the building after chasing Mitch, he becomes exhausted and is barely able to hold himself up. Mitch then takes Franks hand and throws him to safety without any struggle. Mitch is a smaller and lighter person than Frank. He could not have held Frank for the approximate 10 seconds and then with ease thrown him to the stairway platform.
Corrected entry: In the scene where Eastwood is chasing Malkovich after he call hims from the pay phone across the street in the park, Malkovich darts across the path of a passing bus to disappear. If you watch the bottom of the bus, you can see Malkovich's footsteps as he runs to the right (the same direction the bus is heading) to create the appearance that he disappeared into thin air once the bus had gone by.
Corrected entry: When Frank and Al break into Leary's house, they smash the top window, but climb through the bottom.
Corrected entry: In the scene where Clint is running to catch John after his first phone call, the pay phone is emmiting an off the hook sound even though Clint nor John hung up.
Corrected entry: When Frank dials in the name SKELLHAM he presses the wrong numbers(he presses 9 when he should press 2 for A).