When Pete gets dragged out of the bar by the bartender's boyfriend, his pants get ripped in the back. In the subsequent shot, there is no tear.
The Mercedes's upright hood ornament disappears and reappears between scenes.
When Vic shoots the trunk, he points the gun at the passenger side of the trunk. When they pull the trunk out of the car, the bullet hole is on the driver's side.
The umbrella in Charlie's drink jumps about between shots.
When Vic and Charlie are in the restaurant after Charlie drops and breaks his phone, it is intact/broken in subsequent shots.
The $2,147,000 would not fit in that bag. When Charlie opens the bag you can see bricks of hundred dollar bills. Each "brick" contains 1,000 bills or $100,000. This would amount to 21 bricks, which the bag is too small to contain.
In an early bar scene, Charlie greets Vic by using the full name Victor. However, when Charlie pulls into Vic's driveway, the name on the mailbox is "Vincent" Cavanaugh.
When they go to load Gladys's body in the back of the Mercedes, its an obvious dummy as seen by how it flops around lightly after being thrown in there.
When Charlie gets pulled over by Officer Tyler, it is raining, however, Tyler is completely dry.
At the end, the Mercedes has different tire widths on driver's vs. passenger side.
When Charlie is in the convenience store buying the toys for his children, a cooler can be seen with wine in it. Kansas only sells wine in liquor stores.