\"Primer\" is a thought-provoking science fiction thriller directed by Shane Carruth, who also stars alongside David Sullivan. The film delves into the complexities of time travel, exploring themes of innovation, ethical dilemmas, and unintended consequences. Set in the world of ambitious engineers, \"Primer\" captivates with its intricate narrative and minimalist style, challenging viewers to unravel its puzzle-like plot. Praised for its intelligent storytelling and realism, this indie gem has become a cult classic, appealing to fans of cerebral cinema. With its low-budget ingenuity, \"Primer\" offers a unique and immersive experience that lingers long after the credits roll.