You may think at first that this is some kind of lame coming-of-age flick about baseball jocks at a Texas college. But not far in, you become aware of hidden depths and thoughtful undercurrents, and by the end you may want more. For this is another easygoing masterwork from Richard Linklater (the Before trilogy, Waking Life, Boyhood). Gleefully plotless, this semi-autobiographical, slyly wise and somehow wholesome sex comedy boasts a charismatic no-star cast and is about the joy of being 18, on the brink of adulthood, living in the moment and hoping to hook up with someone you like. I may watch it again. (117 min)