In a large bowl, combine the mayonnaise, celery, 1 cup cheese, water chestnuts, 1/2cup bacon, carrots and chives; mix well. Add popcorn; stir to coat. Spoon into a lettuce-line bowl. Top with the remaining cheese and bacon. The 6 cups popped popcorn equals about 3/4 cup of unpopped kernels. Serve immediately.
Makes 10-12 servings.