Tuesday nights just got a whole lot more cinematic in the Lower East Side's Seward Park. Beginning Tue 12, Metrograph, our favorite new LES theater, will be presenting select titles in the great outdoors. The first one is the immortal The Wizard of Oz ("And your little dog, too!"); on deck for August 16 is the enjoyable '80s-arcade-inspired Wreck-It Ralph. Sweetening the deal immensely: free admission and free popcorn. Get there by dusk or risk getting elbowed out for space. And bookmark our calendar of all the outdoor screenings this summer.