20. Cheech & Chong's Next Movie (1980)
Director: Tommy Chong
Cast: Cheech Marin, Tommy Chong, Paul Reubens
Box office: $41.6 million
Plot: The followup to Up in Smoke (1978) introduced Reubens before he was known as Pee Wee Herman and Cheech's goofy alter-ego character Red Mendoza. The dopey duo followed with Nice Dreams (1981), Things Are Tough All Over (1982), Still Smokin (1983), Cheech & Chong's The Corsican Brothers (1984) and Cheech & Chong's Animated Movie (2013).
19. Grandma's Boy (2006)
Director: Nicholas Goossen
Cast: Alan Covert, Nick Swardson, Peter Dante
Box office: $6 million
Plot: Video-game stoners compete to create the next sensation. Dante as Dante the drug dealer and his menagerie are a hoot.
18. Scarface (1983)
Director: Brian De Palma
Cast: Al Pacino, Michelle Pheiffer, Steven Bauer
Box office: $45.4 million
Plot: De Palma's remake of Howard Hawkes' 1932 original, written by Oliver Stone, charts the rise and fall of Cuban drug lord Tony Montana, who gets way too high on his cocaine supply. De Palma went on to direct The Untouchables and Carlito's Way.
17. Super Troopers (2001)
Director: Jay Chandrasekhar
Cast: Brian Cox, Jay Chandrasekhar, Kevin Heffernan
Box office: $18.4 million
Plot: Two teams of State Troopers fight for busts. The stoners - comprised of actors from the Broken Lizard comedy troupe - make a mockery of their very straight rivals. The disappointing sequel Super Troopers 2 came out in 2018.
16. Jay and Silent Bob Strike Back (2001)
Director: Kevin Smith
Cast: Jason Mewes, Kevin Smith, Shannon Elizabeth
Box office: $30 million
Plot: Two New Jersey stoners head West to stop the production of a movie about their characters Bluntman and Chronic. Smith offered a similar storyline in the family-oriented Jay and Silent Bob Reboot (2019).