Watchmen, the monumental graphic novel by Alan Moore and Dave Gibbons, was once deemed "unfilmable." So entrenched were the creators in the structure and language of their chosen medium, that no interpretation, even if faithful to the plot and characters, could truly convey as intended this study of duplicitous, damaged superheroes.

One of my favorite novels, "House of Leaves" by Mark Z. Danielewski, belongs best in a book, which you flutter through, turn upside down and decode in mad layers. The core of it, however, is a spooky, spatially suspect house. Hollywood can probably handle that - and I'd go see the results - but it wouldn't be the same without the scribbled anecdotes, the cover and the spine.

Journey is an unfilmable video game, despite being rooted in a concept that's miraculously relatable and explainable (for a game). A slender being, draped in beautiful and unfettered fabrics, is drawn to a mountain. The beacon beckons not with words, but a language enmeshed with the world itself. Some designers show they care by putting a dot on your screen; others make you a mountain.