Research on Interactive animations

I had originally planned to create an animation around the poem 'The Door' by Miroslav Holub and have started a website based around this: The Lockless Door; but I have long been intrigued by interactive animations and this has been heightened by coming across some interactive films recently. They are classed as part art video game, part immersive entertainment. Touching Stories is an app featuring four interactive films made for the iPad. Touching Stories link. 

I think I can still incorporate the theme of the Door, but maybe make it interactive, the user could enter into other environments through different doors maybe.... 

Here is a link to Donna Leishman's interactive animation based around the theme of Red Riding Hood. I find this inspiring too, but would like to incorporate a mixed media style within my animation I think. 

Screenshots from Donna Leishmans Red Riding Hood (2000)

During my research around the Touching Stories app, I came accross a review which reads: Was very excited about the idea and it is definitely forward thinking, unfortunately the interaction is pretty banal and not really adding to the story. Also had a hard time figuring out how to navigate it. This is something I would need to be careful about. The interaction has to work effectively and although you want the user to have to think about how to navigate, it cannot be so difficult that they give up and don't bother immersing themselves into the world where the interactivity may lead them.