Needle in a Timestack is a 2021 American romantic science fiction film written and directed by John Ridley, based on the short story of the same name by Robert Silverberg.

The film stars Leslie Odom Jr., Freida Pinto, Cynthia Erivo, Orlando Bloom, and Jadyn Wong.

They seem happy, but after being struck by the third time shift in a year, Nick starts to feel something is off.

A few minutes later, Janine calls Nick, and tells him they were married and had a cat, but she cannot remember where they lived.

He leaves a note for himself in the past, saying Alex has fallen in love with Tommy, and not to worry but he will find the person he is meant to be with, and he will know her just by looking at her.

It was announced in April 2017 that John Ridley would write and direct a film based on Robert Silverberg's short story "Needle in a Timestack", with Miramax set to distribute.

Leslie Odom Jr., Freida Pinto, Cynthia Erivo, Orlando Bloom and Jadyn Wong were cast that same month.

The website's consensus reads, "Despite a nifty premise and some talented stars, Needle in a Timestack is too slack and diffuse to recommend searching for.