The model and actress Pamela Green was performing as a dancer in a 1952 revue called Paris to Piccadilly, a version of the Folies Bergère in London.

In the 1960s Marks moved his studio to Saffron Hill near King's Cross Station and began selling photoshoots to the American magazine Swank.

[6] One Marks 8mm glamour film was The Window Dresser (1961), in which Pamela Green starred as a cat burglar who hides from the law by posing as a display mannequin in a lingerie shop.

In this film, Stuart Samuels plays an evil inquisitor who sentences topless women to be whipped and beheaded by a masked executioner.

[10][11] After directing The Nine Ages of Nakedness, Marks endured a particularly turbulent time in the early seventies including bankruptcy (1970), an obscenity trial at the Old Bailey in 1971, and alcoholism.

[1] Ironically, a segment of The Nine Ages of Nakedness had ended with Marks' alter-ego "The Great Marko" being brought up before a crooked Judge (Cardew Robinson) on obscenity charges.

While his earlier 8mm films largely consisted of nothing more explicit than the models posing topless, late-sixties titles like Apartment 69 and The Amorous Masseur were generally softcore pornography.

Marks had been eager to shoot soft porn material ever since the Window Dresser case, much to the disdain of Pamela Green, who dissolved their business partnership in 1967.

"He was fond of good living and a drink or two, and he wanted to go on to soft porn," Green told Tit-Bits magazine in 1995, adding "there was this one film where he was dressed as a dirty old man and he's creeping round Piccadilly Circus, then you see him in bed with this girl".

Arabian Knights (also filmed for Color Climax in 1979) was shot at the Hotel Julius Caesar in Queens Gardens in Bayswater and features mainstream actor Milton Reid in a non-sex role.

[15] Marks' cats remained a fixture of his studio and can be spotted scurrying about in several of the 8mm glamour films of the period, occasionally even appearing in prominent roles.

In the wake of the success of his early "glamour" films Harrison Marks also produced a series of slapstick comedies also sold via the photographic shops and magazines that were the outlet for his adult work.

One of these, Warden's End (1981), starring glamour model and pornographic actress Linzi Drew, shows the exterior and interior of Janus's London storefront office at 40 Old Compton Street.

According to his official website, Marks' corporal punishment material "kept him in booze and cigarettes and an acceptable degree of comfort for the rest of his life".

Some of his videos include: The Cane and Mr Abel (1984), also with Linzi Drew, Bad Girls Don’t Cry (1989), The Spanking Academy of Dr. Blunt, Stinging Tales (both 1992), Naughty Schoolgirls Revenge (1994), and Spanker's Paradise (parts 1 & 2) in 1992 in which he also acted opposite English porn star Vida Garman.