When Harry Rawlings shows up in the warehouse just before he is shot by Veronica, one of the money bags had already been taken out of the back of the car by Veronica and that same bag was seen on the floor to the right side of the screen. But when Harry is already dead on the floor behind the car, and Veronica lies down next to him, that exact same bag is still in the back of the car, it is not on the floor of the warehouse yet.
It is not possible to have a sauna with jewelry. The pieces of metal, particularly conductive materials as gold, silver, platinum and so on, become hotter and hotter and burn the skin.
Linda is target practicing. The chamber of her gun stays back which indicates she has no more bullets. She then shoots two more rounds.
They buy three Glock 17s at the gun show. The handgun Veronica uses has a stainless slide. While Glock 17s are typically all black, they can be purchased with a stainless slide as well.
When the husbands' gang is surrounded and the van explodes, it neatly separates into two halves as it was clearly cut in two by the production crew. Real explosions are not so neat.
About 14 minutes, you can hear a man quietly rapping. Next, another man is seen walking up to a very large lock box which has 2 large padlocks on it. However, when the man reaches the large lock box, the padlocks are missing.
The van is blown into pieces - in two pieces.
It is cut into exactly two halves without deforming the roof or the sides. This is most unrealistic to occur no matter if the exploding device is inside or outside the van.
When the van explodes seen in the beginning of the movie it takes only seconds from the SWAT team opens fire until it explodes. When shown from inside of the building later revealing what really happened it takes much longer time and many more shots.
As the Mulligan limousine approaches their home during their return trip from the MWOW rally, the car (with camera on the front, looking back at the windshield) blows right through a 4-way Stop intersection without even slowing down.