The Mark Obmascik book that 'The Big Year' is based on tells the story of the Big Year, an annual competition that finds bird watchers spanning the globe to identify the most species of birds. You'd be forgiven for not realizing that after watching the new trailer for 'The Big Year,' though, since it paints the Steve Martin/Jack Black/Owen Wilson-led comedy as something like 'The Bucket List' for younger dudes. (Or 'Tropic Thunder' with a PG-13 friendly comedy triptych.) Click through to watch.