Place the first 3 ingredients in a medium pot over medium heat, giving the pot a little shake to make sure the oil coats most of the kernels.

Once the kernels begin to sizzle, cover pot and let pop, shaking occasionally until there is a 3-4 second delay between "pops".

Remove from heat and let sit for a few minutes before transfering to serving bowl.

Working in layers (as per our popcorn tips), dress the popcorn with the lemon rosemary butter and serve.

Enjoy the movie!