Matthew McConaughey could have starred as Jack Dawson in "Titanic," but a new excerpt from a late producer's memoir claims he refused to drop his accent during his audition.

A new book has revealed the real reason Matthew Mcconaughey lost the lead role in "Titanic" to Leonardo DiCaprio.

Matthew McConaughey, 55, almost landed the role of Jack Dawson in James Cameron’s 1997 film “Titanic,” but lost out due to his Southern drawl. In a new posthumous memoir, “The Bigger Picture” by Jon Landau, the late producer detailed the casting in depth.