Texas Chainsaw 3D is a 2013 sequel to the 1974 film, and it is in no way connected to the remake.The film begins with the Sawyers being killed and their family homestead being burned down shortly after the first film... except for one infant, who is rescued by one of the townspeople and taken in as part of the Miller family. And with that, Edith Sawyer becomes Heather Miller, who decades later, learns that she inherited a mansion from her biological grandmother. She goes there with her friend and boyfriend and they learn the hard way that Leatherface is still alive. Pretty soon, the townspeople learn the truth as well and decide to take their vendetta to Heather herself.A prequel is in the works which will delve into Leatherface's life during his late teens.
Anachronism Stew: During the scene where Heather learns about her real family, we clearly see the first film is set in 1973, placing this film in the late 1990s, yet we have camera-phones.
Actually, the dates on the tombstones explicitly set this film in 2012. This trope still applies unless we're supposed to believe that Heather is at least 39 years old. And even then, there's the many characters who haven't aged a day since August 19, 1973.
It should be noted that the date of death on all the Sawyer tombstones conveniently have the year obscured and everyone seems to be going out of their way to not mention what year "August 19th" was, except from one incredibly brief moment on the police record (which also screwed up listing it as "August 18th"). So, there's a degree of Ass Pull trying to make it seem like the first movie take place more recently than it obviously was.
Bald Black Leader Guy: Subverted, and then Inverted. While Sheriff Hooper runs the police department, during most of the film, the mayor Burt Hartman is the real leader everyone listens to in the town. That is until Hooper lets Leatherface and Heather kill him in the end. Afterwards, he makes it clear that he's now in charge by telling the two to clean up the mess before he leaves.
Big Bad: Leatherface officially takes this title in the film, being one of the last surviving Sawyer but later on Mayor Burt Hartman takes the role.
Canon Discontinuity: Acts as a direct sequel to the original, thus negating the events of The Texas Chainsaw Massacre 2 which had the original family moving underground to a Texas carnival and Drayton Sawyer still being a public presence in the community with his chili. Ironically, this film still uses the Sawyer names, an element introduced in the original sequel.
Chekhov's Gun: Heather's "crazy little birth mark" serves as a sign to Leatherface that she is a Sawyer.
Continuity Snarl: The film is set in 2012 and is a direct sequel to the original. Heather should be close to 40 and Leatherface should be in his 60s, yet they're played by, respectively, 26-year-old Alexandra Daddario and the middle-aged Dan Yeager. This would just be an example of Playing Gertrude if not for the fact that Heather herself is portrayed as a young adult.
Lots of phallic shots of Leatherface's chainsaw, especially as it destroys a van.
The shot as Leatherface stabs a kneeling cop... from behind...
Disproportionate Retribution: The townspeople decides Heather has to die for simply being related to the Sawyers. Despite having let her live in the future.
Easily Forgiven: It seems Heather completely forgives Leatherface for killing all her friends and trying to murder her when she finds out that they are related. However, it can be argued that she knows it is partially her fault that Leatherface was let loose and go on a rampage. If she had read her grandmother's letter first, most of the deaths would probably have been avoided.
Hope Spot: After Leatherface damages his van, Ryan eventually manages to speed away from him before he can kill him, Nikki, and Heather. And then the van flips out of control and kills Ryan because Leatherface sawed through a tire.
Not So Different: Heather experiences a Sins of Our Fathers punishment from the townsfolk for Sally's torture. This makes the townsfolk fill the same role The Sawyers held in the 74 classic and Heather filling Sally's.
Hilariously inverted with Nikki. When a police officer is investigating the mansion, he gets so startled by Nikki popping out of a box and screaming at the top of her lungs that he shoots her in the forehead.
Poor Communication Kills: When a lawyer gives you a letter and says you should read it as soon as possible, what do you do? If Heather had done the sensible thing, then we wouldn't have a movie.
Recycled Premise: Following the first film, Heather looks into her dead grandparent's estate, picks up a hitchhiker who unleashes Leatherface and then escapes torture from locals until a gory comeuppance to her captors turns her as crazy as Leatherface.
Unexpected Inheritance: The premise involves a young woman named Heather who inherits a mansion from a grandmother she never knew she had, only to discover that Leatherface still resides there and that she's his cousin.
Unexplained Recovery: How did Leatherface escape the burning of the Sawyer house and make it to his Grandma Verna's?
Ryan, Heather's boyfriend, cheats on her with Heather's best friend Nikki. Heather doesn't seem to notice or show concern when they were both half naked when she crashes their van into the barn Ryan and Nikki were using after escaping Leatherface.