Whether you smoke it or not, cannabis has a big impact on our pop culture. Here are five movies that someone must have been a little high to make.

Reefer Madness: This 1936 film was initially created to warn the youth of America of the dangers of smoking the devil’s lettuce, but found a new purpose in the 1970s. “Reefer Madness” has become an unintentional satiric take on the cultural attitude towards cannabis and a cult classic.

Up In Smoke: Before Snoop Dogg was the poster by and for weed, there was Cheech Marin and Tommy Chong. The 1978 movie was Cheech and Chong’s first feature-length film and is one of the forefathers of modern stoner cinema.

The Big Lebowski: The 1998 Coen Brothers’ classic is the most critically acclaimed of the list. With its intense dream sequences and bizarre but hilarious dialogue, you can watch this one with your folks without raising suspicion. But that’s just like, my opinion, man.

Harold and Kumar Go to White Castle: Two friends’ quest to get snacks after lighting up takes a wacky turn in the 2004 comedy that confirmed what everyone already knew: you have to be very high to want to eat White Castle burgers.

Pineapple Express: One of the first of many Seth Rogen and James Franco collaborations, “Pineapple Express” is the most recent of the films. It pairs fast paced action with a big reverence for cannabis, making it a fun modern classic to watch with friends.

Adrianna McCain can be reached at [email protected] or @theorion_arts on Twitter.