Witness

Those who appreciate the undercover aspects and the tension between different worlds in Witness would enjoy The Departed, a film about deep undercover assignments and the impact on the individuals caught between their job and their safety, set against the backdrop of Boston's organized crime scene.

Similar to Witness, A History of Violence explores themes of identity and concealment within a small-town setting. Viggo Mortensen's character must confront his hidden past, leading to a collision between his newly formed existence and the violence he left behind, akin to the suspenseful dichotomy seen in Witness.

The Fugitive echoes the high-stakes tension of Witness, offering another thrilling chase as Dr. Richard Kimble, wrongfully accused of his wife's murder, works to clear his name. Fans of the cat-and-mouse pursuit in Witness will appreciate the relentless pursuit led by a determined U.S. Marshal played by Tommy Lee Jones.

Similar to Witness, Insomnia is a tightly woven thriller that pits its protagonist against a dangerous criminal element while also dealing with personal and moral dilemmas, all set within a small town's confines where the sun doesn't set.

Eastern Promises, much like Witness, delves into undercover operations and the clash of cultures. The film follows a nurse who stumbles upon evidence against a Russian crime family, leading to a dangerous investigation that intertwines with organized crime rings.

Cop Land presents a sheriff investigating corruption within his own department in a New Jersey town, drawing an outsider into its depths. This theme of confronting the wrongdoing in a close-knit community connects it to the suspense and moral complexity found in Witness.