How High (2001)

Multi-platinum rap superstars Redman and Method Man star as Jamal and Silas, two regular guys who smoke something magical, ace their college entrance exams and wind up at Harvard. Ivy League ways are strange but Silas and Jamal take it in a stride -- until their supply of supernatural smoke runs dry. That's when they have to start living by their wits and rely on their natural resources to make the grade, all while navigating the elitist world of academia and the challenges of being true to themselves. While primarily celebrated as a stoner comedy, *How High* undeniably earns its place on a "Best Fantasy Movies" list through its central magical premise. The "magical" smoke, derived from the remains of their deceased friend, Ivory, is a clear fantasy element; it's a supernatural catalyst that not only enhances intelligence and memory to an impossible degree, but also grants Jamal and Silas the ability to communicate directly with Ivory's ghost. This direct, tangible magical force, which alters reality and bestows extraordinary abilities crucial to the plot, firmly places the film in the realm of fantasy, offering a unique, urban, and comedic spin on the classic "magic potion" or "magical artifact" trope.