When AJ, Gage and Lizzy hear a vehicle approaching, they are yelling that it is Amber. However, the vehicle approaching has five people in it. It is a shot from earlier in the film when Rex, Lizzy, Gage and the security guards were on their way to doctor Gordon's lab.
When Daxton runs out to go check on Kifo, he just pushes the door open and leaves. He should have used a code to get out by that door, as the intern had locked it with the code just moments before.
Amber and her friends escape the warthogs by climbing in the tree. While finding her balance, Amber loses her right arm bracelet. In one of the next shots, she is wearing the bracelet again.
Late in film when they survivors get ready to ride, they collect weapons and lock and load them. Minute later they get in vehicle and lock and load again. Live Ammo would eject from chambers if they did that.
When the first monkey turns from the virus veterinarians are operating on it with heart monitors loudly tracking the heart rate, but in all the shots the monkey has no wires connected to him.
After being stepped on by an elephant, Rex suffers merely a broken leg.
In the final aviary scene, cartridge shells are seen flying out of the side of the shotgun that Gage is shooting. This is incorrect, as shotguns use shells, not bullets.
When doctor Rogers receives the call that the police have arrived, you can see the slide to unlock message blinking on her iPhone. This is indication she has not actually received a call.
When Gage, A.J. and Lizzy are escaping on the zip lines, you can clearly see Gage is just holding his arms above his head with nothing in his hands before the zip line breaks.
During the opening credits when the narrator is describing the events, when she says you can glide along the plains of Africa, the captions misspell it planes.
When SWAT team arrives doctor Rogers is able to follow their movement on the software program for the animal tracking. How is she able to follow SWAT movement?
When Daxton approaches Kifo, Kifo's tennis shoe soles are visible.