A used condom is dropped in one of the character's mouths, but by the time the couple has come back into their hotel room - the used condom is now being held up.
Hostages' positions in relation to each other change repeatedly even though they are zip-tied to the person next to them within their group.
At the rooftop party, there is a blond girl with dimples and a yellow blazer dancing, but as the Dew'd Crew makes their way to Bey with appetizers, that same girl is in Bey's VIP section, standing behind him.
There were 106 hostages divided into groups, and one person per group had a bomb placed around their neck. The duffel bag that the Dew'd Crew gave to Ahmad had a lot more bombs in it than what the terrorists had brought.
When Alex is talking to Darren from the closet the reflection in the window shows an intact bathroom mirror, but Alex had shot that mirror earlier and half of it broke off and fell to the floor.
The hotel is supposed to have 18 floors, but when the Dew'd Crew is hanging from the zip-line at the 9th floor, there are more than nine floors above them. In fact, this movie was filmed in Vancouver's MNP Tower, which has 35 above-ground floors.
The police officers, Danny and Hank, pull up in the same car, but based on the insignia on their sleeves, Danny holds the rank of Sergeant I while Hank is just a Police Officer III. They would not be partnered and working a beat together.
The female police officer referred to the other officer as "Commissioner", but LAPD police commissioners are not uniformed officers. This officer has 4 stars on the collar of his uniform, which means he is Chief of Police.
The Police Chief's (referred to incorrectly as "Commissioner") shirt is not standard LAPD uniform, and his badge is incorrect, as it does not state his rank at the top (that part is blank).
After his floor from high up, he would not be alive to move his eyes to respond to the message over the radio.
When the dog is first placed in the fish tank the two fish that can be seen are very obviously fake. Further, real fish would react to a dog splashing in a fish tank, these don't even move.
When the terrorists are shooting at Rich, they are positioned so that the bullets from some of the guys in the back would likely have hit the terrorists standing in front of them.
If the terrorists were planning on escaping in the helicopter with the $500M, they would not go through the trouble of carrying all of that money from the helicopter to the conference room, only to have to carry it back to the helicopter again.
For some reason, none of the terrorists are able to duck or move out of the way of dead Rich in a Skin-tendo suit. Instead, they choose to stand directly in the path of his spinning punches and shoot many rounds at him, very few of which seem to hit him or anyone/anything else in the background.
8-9 seconds after Rodge walked away from the elevators, the other elevator door dings, opens, and the Dew'd Crew are talking loudly, but Rodge somehow couldn't hear them from down the hallway.
Even the strongest zip-ties available would not be able to hold the weight of the Dew'd Crew on a moving ironing board.