There seems to be some confusion. Justin Long is known for his roles in comedies like *Dodgeball*, *He's Just Not That Into You*, and *Accepted*. Matthew McConaughey is a well-known actor known for movies like *Dallas Buyers Club*, *Interstellar*, and *The Wolf of Wall Street*.
It's possible you're thinking of a different movie or a different actor altogether. Could you provide more details or clarify your question?