For those who grew up or had children over the last 40 years, a childhood might seem incomplete without the bright and colorful pages of books by Eric Carle, like “The Very Hungry Caterpillar.” To capture the art, man and meaning behind the books, which have been archived in the Eric Carle Museum of Picture Books Art, a documentary titled “Eric Carle: Picture Writer, The Art of the Picture Book” will be featured in the annual Wild & Scenic Film Festival by documentarian Kate Geis. “It’s a sort of short process documentary about how he makes his work and we …