In a candid conversation on the Happy Sad Confused podcast, Matthew McConaughey disclosed that his 2003 rom-com, "How to Lose a Guy in 10 Days," remains an unparalleled source of income through residuals.

"How to Lose a Guy in 10 Days is a real gold mine," McConaughey stated, emphasizing the film's enduring profitability. He went on to clarify, "It's still the film that has brought me the most money by mail. By far. By far." The actor attributed this consistent revenue stream largely to the film's popularity around Valentine's Day, explaining that in the era of DVDs and cable television, he would receive a substantial check every March.

Beyond its financial returns, the film also holds a special place in McConaughey's heart. Despite a filmography rich with romantic comedies like "The Wedding Planner" with Jennifer Lopez or "Failure to Launch" opposite Sarah Jessica Parker, he confessed, "I think it's probably my favorite romantic comedy."

Directed by Donald Petrie, "How to Lose a Guy in 10 Days" stars McConaughey as Benjamin Barry, an advertising executive who bets he can make any woman fall in love with him in ten days. His target is Andie Anderson, played by Kate Hudson, a journalist tasked with writing an article about how to drive a man away in the same timeframe. Their conflicting agendas create a comedic battle of the sexes that resonated with audiences, despite receiving a modest 2.8 out of 5 rating from AlloCiné viewers.

Adding to the film's unexpected longevity, Variety recently confirmed that a sequel, or possibly a series adaptation, is in development at Paramount. Kate Hudson is reportedly attached as a producer for the new project. While details regarding the director, writer, and potential return of the original stars remain under wraps, the prospect of a continuation could further cement "How to Lose a Guy in 10 Days" as McConaughey's most uniquely profitable and beloved project.