10 Most Shocking And Strange Facts About Famous Horror Movies

The Nail Gun Massacre, as its title suggests, is an infamously sleazy grindhouse feature about a motorcycle helmet wearing killer who uses the titular tool to murder construction workers - along with any women unfortunate enough to be having sex with them at the time.

Much like the classic its title alludes to, The Texas Chainsaw Massacre, the whole production was made on a shoestring budget by director Terry Lofton. But where TCM's Tobe Hooper crafted suspense and genuine discomfort, Nail Gun Massacre delivers mostly unintentional laughs.

A former stuntman on The Dukes of Hazard, Lofton wrote, directed and produced the movie himself. He even created the special effects and performed some of the stunts. To push his costs down further he recruited locals with little or no acting experience to star. For one scene he even roped in his dear old grandmother.

Legendary director Martin Scorsese often put his own mother in his movies, most memorably she played the mother of Joe Pesci's Tommy in Goodfellas. Mrs Scorsese was an elderly lady raised in little Italy and is wholly believable in her scenes. Perhaps Lofton was seeking the same effect when he hired his grandma to play the store clerk, her actual job in real life, although it was most likely because the actor he originally hired had bailed at the last minute.

Either way grandma's performance does indeed add to the movie. Her stumbled lines and eagerness to deliver them are both charming and amusing, especially when you notice that she's blatantly reading them from a sheet on the counter.

Then again, perhaps it did help to create a sense of realism. The wife of actor John Rudder certainly took the movie seriously, even going so far as to divorce her husband over his sex scene with Shelly York as she believed they were really having sex on film.