In Hollywood marketing parlance, this low-budget Irish horror flick should appeal to the sacred "four quadrants" of the filmgoing public: (1) stoners, (2) fans of the Leprechaun movies, (3) mycologists, and (4) those who can't handle Saw IV–level torture porn. Five American college kids, plus their local pal — Jack Huston, of the famous filmmaking-acting dynasty — enter the woods on a hallucinogenic expedition. They're glib enough to make jokes about Carlos Castaneda and, yes, the Leprechaun movies. Who will survive? Here's the twist: Everyone is shrooming so hard that we can't believe what they — and, by extension, we — are seeing. Ax murderers may only be pine trees, and grisly deaths only an illusion. Another complication: Early on, the cute blonde (Lindsey Haun) nearly ODs on the dreaded "death's head" fungus, which gives her the gift of foresight into who will die in which order. However, her prophetic visions are like being stuck in a Nine Inch Nails video. And the die-off is nowhere near as funny (or gory) as in the Final Destination movies. Shrooms does impart one sound lesson: When you're stoned out of your mind, lost in the psycho-infested woods, and a talking cow tells you to go back to camp, listen to the cow.