Batman: The Dark Knight Returns 30th Anniversary Bust Celebrate 30th Anniversary of The Dark Knight Returns and what better way to celebrate than to pick up this limited edition Batman Bust based on the art of Frank Miller! This bust is stamped on the back with a special DKR30 logo. The Batman: The Dark Knight Returns 30th Anniversary poly resin bust is a limited edition of 3,000 pieces and measures approximately 5-inches tall.