Only if they promised not to tell...

No, as long as you enter it in as an employee fill, it's simply just giving. Generally employees get unlimited drinks and popcorn as long as they have their own containers. And soda syrup and popcorn kernels cost next to nothing to a movie corporation. If it was considered robbery, it would be filed under Petty theft with a max of 3 days in jail with a slap on the wrist

I know the manager of the local theatre in my town. He says that it only costs five cents to fill one of those large Carmike popcorn buckets.

Exactly