What is the fine-grained topic of the following text: 7 features a short film by Gus Van Sant based on a William S. Burroughs short story; a face off between American gray squirrels and British red squirrels; a hallucinogenic post-Katrina New Orleans masterpiece; a documentary exploring autism from the animators of Waking Life; an incredibly close look at the sun in its most inactive and gorgeous state; Field Notes from Dimension X, bumper cars, UFOs and more. Only return the topic.
Short film and documentary reviews and descriptions.