Factual error: When Rosie calls Big Al's number, she gives his address as 41 Ocean Avenue in Howard Beach, Queens. Ocean Avenue runs from Prospect Park to Sheepshead Bay, entirely in Brooklyn, and does not enter Howard Beach. (01:05:00)
Factual error: The movie is set in 1882, however there is a scene where he meets Doc Brown with his DeLorean. Back to the Future Part III took place in 1885.
Factual error: "Can't take my eyes off you" was released in May 1967. The recording scene of this song shows an Ampeg SVT amplifier in the background. Ampeg SVT was not available before 1969 and the specific model shown on the scene (with white rocker toggle) is a later 1976-1979 model. (01:54:10)
Factual error: At the start of the hike on the PCT she spends 10 days or so crossing the desert wearing only a tee shirt and shorts. At the end of 10 days she has no tan and there are no tan lines. Also, it appears she has no tan after walking for 80 days.
Factual error: During his final debate with Professor Radisson, Josh states that science supports the existence of God. There is no scientific evidence to support the existence of any god from any religion. This line is made all the more dubious given that the film earlier made reference to the works and writings of Richard Dawkins and Stephen Hawking - who are two of the most respected scientists on the planet and neither of whom are theists - as counterpoints to his decidedly unscientific claims in earlier debates.
Factual error: The unit on Dusty's torque dial appears as FT/LB (i.e., FT divided by LB) which is incorrect. FT.LB (i.e., FT times LB) is a unit of torque.
Factual error: In the first scene of the film the girls are shown in a flashback playing with the Ouija board. When one of them holds the planchette up to the other one, the underside of it has text saying "© 2013" molded into the plastic, even though the scene is based years before that. (00:01:20)
Factual error: Bo Callahan is described by an interviewer as the 2014 Heisman Trophy winner. However, the film portrays the 2014 NFL Draft (albeit a fictional version of it). The Heisman Trophy is awarded in December and the winner is always linked with the year of the season that was just played (excluding bowl games). The NFL Draft takes place in late April or early May. Therefore, the 2014 Heisman Trophy wouldn't be awarded for another 7 months. Callahan would have to have been the 2013 Heisman Trophy winner if he's the most recent recipient prior to the 2014 draft.
Factual error: In the Logan departure scene near the end of the movie, Logan's naval officer uniform is missing his rank shoulder boards.
Factual error: In a first season scene that takes place at The Max, Kelly Kapowski is wearing sandals; Kelly never wore sandals on the show until the 3rd season at the beach club.
Factual error: Brian Wilson's panic attack on the airplane takes place circa 1964. However, the interior of the plane had distinctive sculpted doors on the overhead bins, a style first introduced in 1983 on the Boeing 757.
Factual error: About 20 minutes in, the group find a Welsh miners' group in the phone book. The character who is making the call speaks the first two digits of the phone number: "0, 1,..." The movie is set in 1984, when the dialling code for that district was "0639" In that year, "01" was the code for London, not Wales.
Factual error: When they're all on the 7 it makes an emergency stop at the 96 Street station, but that's impossible since that line only travels cross town along 42 Street, it doesn't go uptown to 96th.
Factual error: The helicopter flown is a Bell 407. The movie is set in '88 and the first flight of this type was 1994.
Factual error: When Jess meets her father and Martin on the embankment it is twenty to five in the afternoon, however this is between New Years Day and Valentines Day - it would be dark at this time of day in these months.
Factual error: Writer/director Adam MacDonald boasted that he studied black bear predatory behavior and black bear attacks on humans for years in preparation for making this film, because he wanted to depict a black bear attack in as factual and as authentic a manner as possible. But, at the most crucial point in this film (when the black bear actually does attack Alex and Jenn), factual accuracy goes out the window. As Alex and Jenn cower in terror, the bear lunges into their tent and bites into Alex's leg; whereupon, Jenn fires a can of bear spray (a stifling pepper-based chemical) point-blank into the animal's face. The startled bear retreats for a moment, but then lunges into the tent again, dragging Alex outside and killing him; thereafter, the bear continues pursuing Jenn for the remainder of the film. However, according to years of extensive study by the University of Calgary, no bear has ever attacked a human after the animal was sprayed with bear spray, much less resumed an attack, as depicted in this film. To date, the success rate of defensive bear spray is 100%. So, the factual accuracy of "Backcountry" was abandoned for the sake of cheap thrills.
Factual error: When they are in the tank as the main gun is firing towards the helicopter and Kim, the breach is partially open as it "fires" and showers them with sparks. (01:40:00)
Factual error: The film makes use of a real Broadway theater, the St. James, which is on West 44th St. When they leave the stage door, the actors are next to the Edison Hotel, which is on 47th St.
Factual error: The concierge in 1968 rushes to help a guest who is choking. The scene depicts him performing the Heimlich Maneuver. It was not introduced until the 1980's.
Factual error: The picture of the bomb switch shows an Arduino Pro Mini. The Arduino Pro Mini was released in 2008, not in 1975. (01:21:20)
Suggested correction: SPOILERS: The ending of the film reveals that the Fizzle Bomber is an older version of the Agent, who still has a functioning time machine. This simply shows that he is using parts from the future for his bombs.