According to Noah Baumbach at the Lincoln Center anniversary screening, there was another actor scheduled to play the lead role who dropped out at the last minute, prompting Tri-mark to tell him to 'find a star' or they'd cancel the movie. Baumbach quickly faxed his good friend Eric Stolz who was filming Rob Roy in Scotland, and got him to sign on to the movie even though there was no character written for him. They created the character of Chet together, doing a lot of improvisation, in particular the famous 'book club' scene.
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