What better way to celebrate 4/20 than by… purchasing movie tickets to This is the End, and getting free popcorn?

To celebrate 4/20 (a so-called “holiday” for those who enjoy marijuana consumption), the upcoming film This is the End has a special deal.

By purchasing tickets on Saturday, April 20 for This is the End, you will receive a voucher for free “munchies” (popcorn) at Regal Cinemas.

The following video was released to share the news.

This deal is available on Saturday only, so act fast!

This is the End follows celebrities playing themselves as an apocalypse strikes Los Angeles. The last trailer was released on April Fools Day and was an absolute thrill to watch. It “follows six friends trapped in a house after a series of strange and catastrophic events devastate Los Angeles,” reads the official synopsis. “As the world unravels outside, dwindling supplies and cabin fever threaten to tear apart the friendships inside. Eventually, they are forced to leave the house, facing their fate and the true meaning of friendship and redemption.”

The film was directed by Rogen and Evan Goldberg (Pineapple Express, Superbad) and opens June 12, 2013. It stars Rogen, James Franco, Jonah Hill, Jay Baruchel, Danny McBride and Craig Robinson. Watson co-stars in a particular scene where she’s desperate for their food supply.

Happy 4/20, marijuana consumers!