Back in the nineties, Leonardo DiCaprio had to choose between either the male lead in Titanic or the one in Boogie Nights. We know by now that he chose the role of "Jack Dawson," which brought him great success. But today, he sometimes regrets not going for Boogie Nights. Mark Wahlberg ended up playing "Dirk Diggler" and he did a great job in the iconic movie directed by Paul Thomas Anderson.

RELATED: 'Titanic': Who Was the Real "Molly Brown"?