A scene was apparently filmed for the movie featuring a naked female prisoner being drained of her life essence for Lady Agatha's benefit...footage of the scene IS visible in the film, tho heavily censored, and it's uncertain why something so graphic was filmed for what was obviously a movie aimed at the childrens market. The picture to the left is an artist's storyboard of the scene, and the image below a rare screen capture.
*** UPDATE ***
This deleted scene is available on the dvd version of the movie released by ...apparently the scene was only deleted in the UK for the movie to gain a PG certificate but was widely seen elsewhere. A pleasure for me to see the 
new footage all these years later, and quite a well-directed, not to mention harrowing scene.