Character mistake: Nolan said, "Everybody knows that no sharks swim in freshwater" and Spencer said, "They don't come into freshwater", but there are freshwater sharks (e.g, river sharks) and bull sharks (not true freshwater sharks) can survive in saltwater or freshwater. Jacob Harper (National Aquarium) pointed out eyewitness accounts of sharks swimming up the Mississippi River and "bull sharks have kidneys that recycle salt" but did not mention the glands near their tails that help keep salt in their bodies. (00:08:08 - 00:29:50)
Continuity mistake: Travis rearranged a photo on the desk, setting it partially in front of the box and the two pictures were a few inches apart. The next wide view showed the corner of the picture almost aligned with the box or slightly behind it and the two pictures were now almost touching. The angles and locations of the photos changed more than once. (00:09:40 - 00:10:03)
Other mistake: James told Det Vargas he left the bar "2:30, give or take" and Vargas responded, "bar closes at 2:30 [AM]." When Star approached James at the bar, she said, "When I see a guy alone at the bar at three in the morning..." It is questionable if Detective Vargas was correct about the closing time. Traditionally, bars in L.A. closed at 2:00 AM. CA's Business and Professional Code on serving alcoholic beverages apparently now allows serving alcohol until 3:00 (not 2:30) AM - was this in effect? (00:04:33 - 00:11:50)
Revealing mistake: The 50 dollar bills that appear in the opening credits all have the same serial number (and you can find online the texture they used with great ease, just like the one for the 20 dollar bills stack). (00:03:45)
Revealing mistake: The ostrich had its head down, pecking on the floor, when Rachel opened the door. Rachel screamed, then the ostrich raised its head. Ostriches generally have acute hearing that enable them to hear approaching predators, so it is unlikely the ostrich (even a pet) would not have raised its head when Rachel was still on the other side of the door. Also, the ostrich showed no reaction to being so close to the foot+ high flames in the indoor fire pit, suggesting one or both was/were fake. (00:54:47 - 00:55:16)
Continuity mistake: There are two stand-up picture frames on the table. Judy knocks over one picture frame as she walks towards and points mace at Burton. Judy continues holding the mace in her right hand and purse in her left and does not bend over to upright the frame. When Judy leaves, the picture frame is upright and roughly parallel to the other frame. (00:25:45 - 00:27:20)
Deliberate mistake: The thug wearing headphones and facing the money on the shelves did not notice that Savage forcefully opened the door several feet to his right, slamming it against the adjacent wall, or that Savage had entered the room. The bang to and vibration from the door hitting the wall should have been enough to overpower the sound from his earphones, but - even if they weren't - his peripheral vision should have sensed the door opening and Savage entering. (00:02:55)
Continuity mistake: Ken and Zoe needed "a vehicle of some kind" and Zoe just happened to see some ATVs in the distance. Zoe pointed straight ahead and then the camera shifted to show the ATVs. However, based on the directions Ken and Zoe walked (straight ahead followed by making a right turn) and the high wall-like shrubs to the right side, Zoe could not have seen the ATVs from where she had been standing. (00:54:14)
Continuity mistake: The clock on the wall at Pee Wee's Pawn Shop advanced from about 12:00 to 12:05 when Frank was talking to Jerry, but it was back to around 12:01 after a few camera shifts. (00:05:59 - 00:06:24)
Factual error: Pettis' calculation of the amount Connor needed to replace his asset was way off. He stated, "[Cornell] brought me about 250 [$250,000] a year. He had at least 20 more years of service. Subtract five years he might have spent in prison, so you owe me, what? Six point two million." Pettis was presented as intelligent, but a quick mental calculation of even the full 20 years at $250,000 would total only $5 million (not $6.2 - an odd sum). For 15 years, the total would be $3,750,000. (00:28:45)