(Hanna-Barbera Studios, 1981) Impressive original production sliding cel overlay and matching super-pan production background featuring the mushroom forest from The Smurfs. The sliding cel is a full piece of 56.5 x 10.5 celluloid, with an image of green bushes measuring 19 x 3.5 at center. It is overlaid on a lush hand-painted super-pan 62 x 10.5 background of the Smurfs' mushroom forest, replete with flora and fungi including a huge pink mushroom, three smaller mushrooms, five white flowers, eight yellow flowers, and two thick tree trunks. Rolled and in fine condition. A huge and impressive production piece from the classic 1980s cartoon.