James George and Jonathan Minard are trying to finish their documentary Clouds - the first interactive film presented within their 3D cinema effect (RGBD). The Kickstarter campaign is looking to raise funds to help create this sort of experience:

The CLOUDS experience is generated from a database of richly tagged interviews. For you, the viewer, the story begins with your curiosity. You input a question or search term as the starting point, setting the initial trajectory. Just as an everyday conversation will often flow through series of digressions, each subject you encounter offers branching paths to unexplored regions of the video collection. A unique narrative experience is generated just for you. You can sit back and watch the story conversation unfold, or let your interaction with the system guide you toward surprising outcomes.

I'm not sure if that sounds enjoyable or laboring. Regardless, it definitely sounds unique and I rather love the look of the 3D film (see also: Aaronetrope).