“Moondog is the greatest poet in the history of Key West. I read a few of these pages and loved every minute of it.” Harmony Korine The Beach Bum follows the outrageous misadventures of Moondog (Matthew McConaughey), a rebellious burnout who only knows how to live life by his own rules. Complete with an all-star cast including Snoop Dogg, Isla Fisher, Zac Efron, Jimmy Buffett, Martin Lawrence and Jonah Hill, The Beach Bum is the wildly original and subversive new comedy from writer/director Harmony Korine.