After completing work on
Jack the Ripper (1976), producer Erwin C. Dietrich allowed director
Jesús Franco more freedom on his next film which went into development as ''No Man's Land
. Dietrich gave Franco more freedom due Frauengefängnis (1976) becoming a major hit for the producer and the overall quality of work done with Jack the Ripper''.
Ilsa the Wicked Warden was Franco’s second
women-in-prison film for Dietrich, after
Frauengefängnis.
Ilsa the Wicked Warden was a co-production between the Swiss company Elite Film AG and the Canadian company Aetas Film Production. The film was shot in Portugal between August 17 and September 1976. Exterior shots were shot in August 1976 in
Sintra, Portugal. Location interiors were fimed at Villa Sonnenberg at the edge of a forest outside of
Zurich and studios in
Rümlang. The films leading actress was
Dyanne Thorne, who became known for her role of the warden Ilsa in the films
Ilsa, She Wolf of the SS (1974),
Ilsa, Harem Keeper of the Oil Sheiks (1976), and
Ilsa, the Tigress of Siberia (1977). Describing her celebrity factor at the time, Franco biographer
Stephen Thrower said that mainstream coverage of Thorne's films were "virtually nonexistent, but anyone who walked through
Times Square between 1973 and 1982 probably saw her face on posters and stills a thousand times." Thorne said she was unaware the film was going to be a
sexploitation film, saying that Franco was a "talented director with whom I had hoped we would create a film of some small significance with the depth of an expose. The joke was on me." In his biography of Franco,
Stephen Thrower said that Thorne's character "Greta" was basically identical to Ilsa, while still nominally being a new character. The film only received its name-relation with the
Ilsa films when distributed in the United States theatrically and on home video. ==Release==