Levy was born in Boulogne-Billancourt, Hauts-de-Seine, and studied management and computers at Paris Dauphine University.

In the late 1990s, Levy wrote a story that his sister, then a screenwriter, encouraged him to send to Editions Robert Laffont, who immediately decided to publish If Only It Were True.

Before it was published, Steven Spielberg (DreamWorks) acquired film rights to the novel.

The movie, Just like Heaven, produced by Steven Spielberg, and starring Reese Witherspoon and Mark Ruffalo, was a #1 box office hit in America in 2005.

[1] After If Only It Were True, Marc Levy began writing full-time.