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: 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: 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: 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: 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: David and Jo, each wearing sunglasses, are riding in the boat. When David says, "L'Afrique", buildings along the upcoming shore are reflected in his sunglasses. The camera shifts to Jo, also facing the shore, and buildings with more lights are reflected in her sunglasses. The camera then shifts to a rear view of David and Jo and it is obvious that what was reflected in their sunglasses was not possible. (00:01:40)
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)