Factual error: The movie is set around 1995. But the SWAT team in the movie is wearing gear from the 2000s. (MICH-2000 helmet, modular tactical vest, M4 variant with picatinny rails and scope). Plus, in a scene when the guys are shopping for a taser (gun shop scene), some of the rifles on display are from 2000s era. AR-15 variants with variant stock, foregrip and picatinny rail. Those style of weapon system were unheard of in early 90s. Even Special Forces just adopted it by the late 90s.
Factual error: While cutting out bloody bits of carpet after the couple is murdered, there is a GameCube controller on the floor by what appears to be a table leg. If the events occurred 1995-1996 as the movie states in captions, then the controller went back in time to be there. The GameCube wasn't available until 2001.
Factual error: In the 1995 part the police cars are Ford Crown Victorias, 2nd generation, but this car was first launched in 1998.
Factual error: When the SWAT team arrives at the start they have LED lights on their truck. The film is set in 1995 and the first American car with LED lights was available in 2000. (00:01:30)
Factual error: When the SWAT teams come to arrest all the criminals, they are shown having the EOTech holographic weapon sight on their rifles. The story happens in 1995 and EOTech introduced the first holographic sight in 1998.
Factual error: When the guys are trying to dump the body of the porn guy, in the background of a shot when they are driving the van, you can see a 2001 BMW 7 and a 2013 Ford Mustang. Odd, seeing how the movie is set in 94/95. (01:40:45)
Factual error: The movie is set in 1995. In the movie, The Rock is driving a Plymouth/Chrysler Prowler. The Prowler wasn't available for purchase until 1997.
Factual error: Early in the movie, Daniel's boss "starts reading Fortune Magazine" thanks to the new success of the gym. We are supposed to still be in the late '94 phase of the events (before Christmas, when he gets promoted) but the issue John is reading with Bob Eiger on the cover ("Disney's Epic Year") is the April 17, 1995 one. (00:09:10)
Factual error: On the phone with the private detective, Tony Shalhoub snarls "Everything's old in this freakin' hospital", which is ironic considering just by his bed there's a compact and very modern looking LCD monitor, out of place in a dingy hospital facility in 1995. (01:01:30)
Factual error: In the Schlotzky's restaurant in the background, the fountain drink stall has the new Pepsi logo on it, and also the cash registers are LCD-touch screen devices, with modern pricing displayed. All wrong for 1995. (00:30:45)
Factual error: Miami-Dade County wasn't used as its name in 1995, when the film is set. It wasn't changed to that until 1997.