Deliberate mistake: After the car crashes into the light pole and flips over. The top light is still functioning even though it's nowhere near the original spot.
Deliberate mistake: In the pitch dark mansion dining room, the approaching zombie's screams are instantly interrupted by silence whenever the flame from Chris' lighter goes out, and then the screams instantly resume when the light returns. While this is obvious artistic license, for the record the level of darkness would have no bearing on whether we can hear the zombie screaming.
Deliberate mistake: Driving to Malibu, Knox's truck is going the wrong direction on the road - the solid double yellow lines are on the passenger's side and the solid white line is on the driver's side. (The driver is on the left side of the vehicle.) There is no solid white line on the opposite side, indicating it is a one-direction road. The truck quickly crosses over the yellow lines and goes off-screen, after which it can be seen there's a wide paved shoulder that tapers to the edge near the intersection. (00:03:20)
Deliberate mistake: Denzel Washington never wears a vest (at least during the previews). All deputies are mandated to wear at least a level II vest (most will buy a higher protection vest) whenever performing Sheriff duties. Plus his duty shirt is just plain sloppy looking, way too big for him.
Deliberate mistake: When the gangs meet in the toilets to set a date for the brawl, the mirror on the left is the only one opaque, most surely to avoid reflections of the filming crew.
Deliberate mistake: When King Shark grabs the guard from behind and eats him, he screams loudly, but nobody reacts to it, not even his buddy who just went left to fetch a drink. Later Cena and Elba kill 'silently' every other guard, but when they get to a group of three that Bloodsport yo-yos to death, it's pretty impossible that those three could have missed the carnage just a little off to the left. Then again, at the end a whole tower gets demolished without anyone noticing, so It'has to be deliberate. (00:33:05)
Deliberate mistake: The Janitor was driving away from Willy's but the explosion shows up in the front of his sunglasses. (01:21:47)
Deliberate mistake: After jumping off the cliff, Dom and Letty's car rolls over violently several times and finally lands on its wheels. Letty sits calmly, safe and sound, not a single scratch or bruise despite not wearing her seatbelt and having survived by just grasping the handlebar above her head.
Deliberate mistake: Louis says to his opponent "Glock 17, 17 rounds." The opponent says back "I lost count." In modern semi-automatic handguns, especially Glocks, after the last round is fired the slide stays permanently open till a new magazine is inserted and slide is racked, or the slide stop lever is manipulated (depressed down). The slide can be closed on an empty magazine as well by the slide stop lever. (01:11:00 - 01:11:30)
Deliberate mistake: After John poured gasoline on/around the Mercedes, set it on fire, and it was surrounded by flames, he was able to put his hand through the flames to open the rear passenger door and get inside. He did not burn his hand on the hot metal door handle and did not catch any of his clothes on fire or even singe his hair. His hand was not injured because he was able to hold and aim his pistol with it. (00:35:04)
Deliberate mistake: When Kasady and his symbiote are fighting for control at the bell tower, they are reflected inside Venom's eyes...who is lying on his back in the middle of the cathedral and is nowhere near and at the totally wrong angle for a reflection like that to happen. (01:15:50)
Deliberate mistake: The Virtuoso would not be able to have a flashback of the explosion that included a view from behind the van (VanTerra or Winnebago?). (00:14:07)
Deliberate mistake: When James started to fall off the ladder, he tried to jump to reach the other side. Thom grabbed his right hand with his and was able to pull him to safety. James' weight and the force with which he jumped and swayed would have most likely resulted in James pulling Thom over the edge with him, and both being seriously injured or killed. (01:22:26)
Deliberate mistake: When Max knocks out Jeff with a pool ball, he later wakes up with a VR headset on his face, and he is able to see his body and the outfit he is wearing within the VR environment. This is very obviously not how VR works - you are not able to see your own body while in VR, just the environment you're in. This might have been done deliberately so that Jeff was able to see his movements, but it's still a mistake. (01:05:10)
Deliberate mistake: Evie digs a box out of the greenhouse dirt, but no dirt falls off the box, and the box is clean when she moves it onto her lap. (00:09:00)
Deliberate mistake: The doctor appears to write just three numbers or a short wavy line on the back of his business card for the phone number he told Marjorie to call (to get a second opinion about Nathan). (00:42:35)
Deliberate mistake: The view looking out the windshield showed the man on the bicycle had stopped when he was in front of the car's passenger side, but the outside view showed the man still coming to a stop and then tilting his bicycle. (00:07:12)
Deliberate mistake: Kurt was close to the passenger side when Malik shot him from the opposite side of the car, but he fell backwards some distance from the car (and not from the force of the bullet). (01:24:40)
Deliberate mistake: The "Sixth Street Coffee" surveillance video footage of Zara disarming the barista's determined ex-boyfriend was different from the actual event when shown on Audrey's cell phone (recorded from TV news). The most obvious difference was that Zara never held the gun with both hands behind her and making a circular motion over her head before aiming at the man she had kicked to the floor. (00:08:10 - 00:09:45)
Deliberate mistake: Nora's car smashed through the (almost floor-length) windows in the police station and exited the building airborne - and stayed airborne long enough to clear a police car parked alongside the building (or curb). (00:27:05)