Filmmaker David Gordon Green earned his indie stripes with poetic, character-driven movies such as "George Washington," "All the Real Girls," and "Snow Angels" before taking on the mixed bag of commercial projects that includes "Pineapple Express," "Your Highness," and "The Sitter." "Prince Avalanche" may be just a pet project between bigger gigs (IMDB.com reports Green is in post-production on a remake of the schlock horror classic "Suspiria"), but it's a surprisingly humorous and humane film -- a lyrical little oddity that stands as a welcome return to form.