Shot in 12 days in the August of 1964. Many days were extremely hot on a small stage with no air conditioning. Lon Chaney Jr. frequently had to be wiped down between every take on some days.

Star Lon Chaney Jr. sings the film's quirky theme song.

The rocking chair that Virginia ties Peter to as she plays her spider game was an antique that belonged to director Jack Hill's grandmother. It was destroyed during filming.

Thought to be a "lost" film in the 1990s, it was learned there was a badly-dubbed 16mm VHS copy in release. Writer/director Jack Hill found the original negative, got a clean digital transfer from it and put that in circulation. As the picture was not copyrighted, he was able to market it on his own. Hill added a scene cut from the original theatrical release and promoted it as the "Director's Cut".

The film's original title "Cannibal Orgy or, The Maddest Story Ever Told" was incorporated into the theme song, which culminates with a line that states "This cannibal orgy is strange to behold and the maddest story ever told."

Sid Haig admitted to avoiding Lon Chaney Jr. for the first two days of filming, simply because he wasn't sure what to say to the veteran actor. One day Chaney was needed for and Haig was sent to Chaney's trailer to retrieve him. Haig nervously knocked on the door and said, "Excuse me, Mr. Chaney. You're needed on set." Chaney told Haig, without skipping a beat, "Stop that. I'm not Mr. Chaney. I'm Lon. You're Sid. Let's leave it at that." Haig later said that this interaction put him completely at ease.

The film was originally titled "Cannibal Orgy"), and director Jack Hill wrote a treatment for a sequel called "Vampire Orgy," which followed Peter and Ann on their honeymoon.

According to Sid Haig, when Lon Chaney Jr. finished the scene where Bruno talks about the toy, the crew was in tears. Chaney also received a standing ovation and wasn't able to leave the set for five minutes.

The film had a $60,000 budget. Lon Chaney Jr. was paid a flat fee of $2500 for his performance, each of the other actors were paid $100 a day. Coincidentally, the price of the actors salaries was the same as the daily rental of the Duesenberg that Bruno drives.

The film was shot in August of 1964 with the title "Cannibal Orgy, or The Maddest Story Ever Told", but there was no premiere. Its release was held up for 3-1/2 years because the producers went bankrupt, which tied up the film in legal limbo. Independent producer David L. Hewitt acquired it for distribution in December 1967 and changed the title to "Spider Baby" and, the following summer in 1968, "The Liver Eaters."

Quinn K. Redeker would sometimes sit in Lon Chaney Jr.'s trailer while Chaney told him stories and anecdotes about his films. Chaney would often be making his specialty--homemade mustard--while doing so.

For the scene in which Ralph climbs down the house and peers in the window, Sid Haig had a rope tied around his feet and was lowered in front of the window. Pressure built up behind his eyes and he panicked, so this footage was shot very quickly.

This had to wait 33 years before it was released to cinemas in the UK.

The Smith estate house was originally occupied by Judge David Patterson Hatch, where he wrote occult books as well as metaphysical writings after he retired from the bench.

Directorial debut of Jack Hill.

The wrap party was held at the home of actress Mary Mitchel and her then-husband, producer Bart Patton. The couple's dog had recently had puppies, and that evening co-star Sid Haig and his wife took one of the pups home and named it "Uncle Ned" after the character in the film.

During the climax as he's struggling with Mary Mitchel, Sid Haig had the flu and a temperature of 103°. The producers employed a doctor to standby on the set to give Haig an injection every few hours so he could continue to work.

Released to drive-ins simultaneously under two different titles--in 1968 as the latter half of a double-feature paired with Hells Chosen Few (1968); the print was titled "Spider Baby", When it was paired with Dr. Terror's House of Horrors (1965) (aka "The Blood Suckers") it was titled "The Liver Eaters."

Notorious plagiarist Lianne Spiderbaby took her writing pseudonym from the title of this film.

The film was adapted as a stage musical in 2004.

The Smith Estate of Los Angeles, CA, was used for the exteriors of the Merrye house. The house still stands today.

The studio where the bulk of the film was shot (in August of 1964) was not equipped with air conditioning, only fans. With temperatures in the triple digits outside, the crew were all uncomfortable, but none more than Lon Chaney Jr., who was often dripping with sweat by the end of his takes. A bucket of ice water was brought in so Chaney could be mopped down with a cold, wet towel after each take.

While driving in the car, Peter and Ann discuss the legend of the Wolfman. Lon Chaney Jr. played the title character from the 1941 movie of the same name.

Interior sets were erected on a soundstage in Glendale, CA. The same walls were moved and redressed to create the various rooms in the Merrye home.

Director Jack Hill accompanied actress Carol Ohmart on a trip to Frederick's of Hollywood, where she personally picked out the sexy wardrobe she dons in the latter half of the film.

After dinner, there's a brief scene that ends with Schlocker wagging his cigar at Emily. Originally this scene ended with Emily ripping the cigar from his hand and puffing on it, but the producers hated this irreverent moment and demanded it be cut.