Six words reportedly cost Matthew McConaughey the lead role in Titanic: “No. That was pretty good. Thanks.” Producer Jon Landau, who has worked on the majority of director James Cameron 's feature films,

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.

Regardless of the Titanic story, McConaughey has built a highly successful career, including winning an Oscar for his performance in Dallas Buyers Club in 2014. Though his Southern accent is a well-known trademark, the actor has been able to tone it down for several roles, such as the Buster Moon character in the Universal Pictures movie Sing.