Simulating Orville's Cracked Pepper and Salt Popcorn
I doubt the cracked pepper flavor in the popcorn actually comes from cracked pepper. Food technologists tend to use extracts for flavors, and then enhance the visuals. The popcorn you like is likely flavored by some sort of pepper extract (probably oil suspended) with some cracked pepper flakes thrown in for visual effect. 

You may very well be able to re-create this if you take the same approach: get the flavors working and then worry about how it looks. This makes things easier in a way, you can use whatever works to get the right flavor rather than trying to get it from one ingredient. 

Pepper and chili flavors are both oil-based, and you'll have the best luck trying to get the flavor into an oil and then coating the popcorn in the oil than trying to add the flavor directly to the popcorn. Try adding your pepper dust to oil or butter and gently heating it for 20 minutes or so. 

You can then try using this oil to pop your corn, this may or may not work properly as pepper tends to burn and get bitter, however if you've extracted the flavor into the oil it may work. If it does turn bitter then the oil would need to be added after the popping. Adding some cracked pepper flakes to the oil at the end ought to give you the visual effect you want as the oil will help it stick to the corn. You could add the salt to the oil or simply sprinkle it on.