It’s 1976 all over again in Richard Linklater’s 1993 pot-hazed high-school confidential. Yet beneath the cannabis clouds there’s surprising insight into the inner lives of slackers, stoners, and jocks. Throughout, Linklater’s laid-back observational style reveals all the longing, languor, and half-understood notions of self that define what it means to be 18. And you can’t beat Aerosmith’s “Sweet Emotion.” Keep your (red) eyes peeled for Parker Posey, Ben Affleck, and Matthew McConaughey, whose muscle-car Romeo memorably declares, “That’s what I like about these high school girls: I keep getting older; they stay the same age.” Somehow Linklater almost makes that seem poignant. (R) BRIAN MILLER

Fri., April 6, 9:30 p.m., 2012