The 2004 film The Life and Death of Peter Sellers contains a brief mention of Duluth. Geoffrey Rush plays the role of the famous actor/comedian Sellers, whose agent Dennis Selinger, played by Henry Goodman, encourages him to broaden his audience in the scene embedded above.

The dialogue goes like this:

Selinger: Blake Edwards is the hottest director in Hollywood right now. Days of Wine and Roses, Breakfast at Tiffany’s … He can get anyone he wants. And, Peter, he wants you! United Artists are putting a lot of weight behind it. It’s going to be very wide, very international release. You may be a big star in Britain, but the folks in Duluth have never heard of you.

Sellers: Then we’re even. I’ve never heard of Duluth.

Selinger: It’s in the United States.

Sellers: Oh. That Duluth.

The full film is available on YouTube, embedded below.