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.

The Academy Award-winning actor had auditioned for the role of Jack Dawson, which was ultimately portrayed by Leonardo DiCaprio

Matthew McConaughey once lost out on the lead role as Jack in James Cameron's Titanic, and the reason why has finally been explained in a new memoir.