The details of McConaughey's audition gone wrong are mentioned in "Titanic" producer Jon Landau's posthumous memoir, "The Bigger Picture."

Long before Leonardo DiCaprio became the face of Titanic’s Jack Dawson, another Hollywood heartthrob was nearly cast in the iconic role, Matthew McConaughey. But according to a new revelation, the Dallas Buyers Club star reportedly torpedoed his shot at cinematic history by refusing a simple direction from James Cameron during his audition.