Despite its controversial content, the film is a technical marvel:

Uses long, uninterrupted takes (or digital composites made to look like them) that disorient and trap the viewer.

The film follows two men, Marcus () and Pierre ( Albert Dupontel ), as they hunt for the man who brutally raped and beat Marcus’s girlfriend, Alex ( Monica Bellucci ).

Indicates a re-release of a digital file to fix a previous error, such as out-of-sync audio or corrupted video frames, ensuring the highest possible playback quality. Irreversible (2002): An Unflinching Masterpiece

Typically signifies that the file contains two versions of the film: the original Reverse Chronological Cut and the Straight Cut (chronological order). It can also refer to dual audio tracks (e.g., French and English).