On the Run (French: Cavale) also known as (Trilogy: One) is a 2003 film directed by, written by, and starring Lucas Belvaux.

It constitutes a thriller, and is preceded by Un couple épatant, which is a comedy, and followed by Après la vie, which is a melodrama.

He goes back to the chalet and starts climbing the Alps in order to escape to Italy,but on the top of a mountain he walks into a crevasse and sinks to the bottom.

Mark Kermode from The Guardian favorably compared the film to Kill Bill: Volume 1 and called it "a first class first installment for Trilogy, and a tough act to follow for Two and Three, whose central characters we have now met and wish to know better.

"[5] Ted Shen from Chicago Reader gave a favorable review, saying, "The plot is intricate (partly because it can’t afford continuity gaps in the intersecting lives), especially in laying out Bruno’s methodical revenge and subsequent getaway.

Behind the camera, Belvaux builds suspense with an austere tone and clever false alarms; in front of it he plays Bruno as chivalrous yet ruthless.

"[6] David Stratton from Variety spoke well of the film's opening: "Escape sequence is dynamically directed, with the camera placed in the getaway car that careens through the nighttime streets until stopped by a police road-black, whereupon all hell breaks loose.

[1] A. O. Scott of The New York Times was less complimentary: "On the Run, the supposed thriller, is more numbing than thrilling...The movie seems to be aiming for the Zenlike deliberateness that Jean-Pierre Melville showed in transcendent policiers like Le Samouraï and Le Cercle Rouge, but without the necessary rigor or wit.