A Mistake is a 2024 New Zealand medical-drama film, written, directed, and produced by Christine Jeffs, based upon the novel of the same name by Carl Shuker.

It stars Elizabeth Banks, Simon McBurney, Mickey Sumner, Rena Owen, Richard Crouchley, and Matthew Sunderland.

A veteran surgeon makes a fateful decision during a surgery by allowing an inexperienced colleague to take her place.

When a fatal mistake occurs, the surgeon finds herself in a difficult situation.

In May 2022, it was announced Elizabeth Banks had joined the cast with Christine Jeffs set to direct from a screenplay she wrote based upon the novel of the same name by Carl Shuker.