Continuity mistake: When Harry Heck is taking out his guitar from its case, watch as he puts his cigarette between his ring and pinkie fingers, then watch as it appears back in his mouth and then back between his fingers without time to make the switch. (01:05:00)
Continuity mistake: When Frank gets invited to dinner by his neighbours, after saying thanksgiving, the two guys leave leaving Joan and Frank alone to talk. In the first shot Joan is standing up from her seat, but in the following shot she is on the other side of the table (length ways, not width ways). (01:10:10)
Continuity mistake: When Castle and Joan are talking and Joan is touching Castle's face, there is a shot where her hand is no longer touching his face. In the following shot her hand is back on his face. (01:11:00)
Continuity mistake: Near the end, when Howard is in Quentin's place moving furniture, when he gets to the last chair near the fireplace in the overhead shot he just moves it with his foot, but in the following closeup he has his left hand on the marble above the fireplace. (01:32:20)
Continuity mistake: At the end of the film when Frank Castle is standing over Howard, Frank grabs Saint's right leg (you can tell its his right leg by looking at the shoe), but in the following shot he is holding Saint by the left leg. (01:45:35)
Continuity mistake: After Frank Castle climbs out of his flipped Pontiac GTO, Harry Heck walks up and points his shotgun at Frank. Frank points a closed switchblade knife at Harry and pushes the button, sending the knife blade flying into Harry's neck. When it switches back to Frank, there is still a blade on the knife, in the open position. After a cut to Harry, it switches back to Frank and the knife blade is gone.
Continuity mistake: When Frank's family is being attacked, Frank and his father are inside the house fighting with some thug hiding behind the barbecue stand. At one point a shotgun shot is visible in the black metal lid on the left of the stand. In the next shot, the lid is intact, and then when the gas bottles blow up, it's shot again.
Continuity mistake: When Saint's men murder Castle's family, the man who tried to escape on the motorcycle is shot and falls off next to the motorcycle. The motorcycle slides and comes to rest with the back of the motorcycle facing the large deck and ocean. However, when Castle chases his wife and son, he picks up the motorcycle, and it is turned around with the front facing the ocean.
Continuity mistake: At the end, when Howard Saint is being dragged behind the car into the lot full of burning cars, he is catching on fire in a close up. Then in a far shot and Saint is no longer on fire, but in the next close up he is on fire again.
Continuity mistake: Whilst being chased by Harry Heck, Castle drives through a railroad gate. As he does so a piece of wood seems to get jammed or stuck on his right headlight. In the very next shot, the piece of wood is nowhere in sight, not even on the road.
Continuity mistake: During the dinner scene, when Frank and Joan almost kiss, they keep changing distance to each other. Every time the shot is from over his shoulder, their faces are really close together, almost touching. When the shot is from over her shoulder, they are further apart.
Continuity mistake: When Castle's father is making a toast at the family reunion, his martini class spills slightly towards Frank Castle, causing Frank to flinch and laugh at his dad's drunkenness. However, the shot changes to a different angle and Frank is sitting down as if he never moved.
Continuity mistake: After the Punisher has shot Howard Saint, he tosses down his pictures of Quinton, proving that his wife was never unfaithful. When he first tosses the pictures, at least one lands a few inches beyond Saint's head, and the rest all apart. But in the next shot, they are all together, in front of his eyes (and all facing the same general direction, conveniently).
Continuity mistake: When the Punisher is pretending to burn the man with the torch and then lets him down, in one shot the popsicle stick is showing and on the later shots the top of the stick is no longer visible.
Continuity mistake: The bullet-hole scar on Frank's chest moves closer to, and further away from his sternum several times during the film.
Continuity mistake: After Frank shoots Howard Saint, when he goes to tie him onto the car Howard's hands change from resting close to his belly to resting on the floor.
Continuity mistake: When Frank is positioning the fire hydrant he has trouble moving it due to its weight. Yet only a minute earlier he was carrying it quite easily in a bag a good few inches above the ground.
Continuity mistake: Towards the end of the film, Castle is setting up his revenge wearing a trench coat but when he is placing the fire hydrant, it is the same footage from earlier when he had a T-shirt on.
Continuity mistake: When Howard is killed, he's set on fire by all the explosions. Yet just a few seconds later in a wideshot, he's no longer on fire.
Continuity mistake: Castle ties Saint's left leg to the car bumper. A few seconds later it's suddenly his right.
Answer: In Season 9, Episode 20 of "Mythbusters," Adam and Jamie tested whether a person could survive a "toilet bomb" (recreating a Lethal Weapon 2 scene) by jumping into a cast iron bathtub and being covered with a bomb blanket. They used 1 kg of C-4 explosives that created a blast with a peak lethal pressure of 180 psi outside the tub. The pressure inside the tub was recorded as a survivable 8 psi, though with probable hearing damage. From what I read, a grenade has a much lesser psi force than what the C-4 explosion produced. Depending on the circumstances, it seems plausible that a person could survive the force and shrapnel while inside the tub.
raywest ★