The official site ( from Richard Linklater’s Sundance-acclaimed cartoon feature is filled with appropriately trippy images. And after teaching visitors about animation techniques used in the film, it then lets you play artist. Using a virtual coloring book, you can relive the sunny days of your youth as you giddily brighten up sketches of stars Wiley Wiggins and Julie Delpy. But it’s not all child’s play: The list of philosophers and thinkers who have influenced the film reminds you that this is one grown-up burst of creativity.