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Joaquin Phoenix Reiterates Regret Over Infamous 2009 Letterman Interview

On his July 15 appearance on Colbert’s show to promote Eddington, Phoenix described the 2009 stunt as “one of the worst nights” of his life.

Actor Joaquin Phoenix, waves to the audience during his interview with Late Show host David Letterman during the Late Show with David Letterman Wednesday, February 11, 2009 on the CBS Television Network.
The Late Show with Stephen Colbert and guest Joaquin Phoenix during Tuesday’s July 15, 2025 show. Photo: Scott Kowalchyk ©2025 CBS Broadcasting Inc. All Rights Reserved.
Joaquin Phoenix attends a screening of "Eddington" at the Cannes Film Festival on May 16, 2025.
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Overview

  • On July 15 on The Late Show with Stephen Colbert, Phoenix apologized directly to David Letterman and called the 2009 interview “horrible” and “so uncomfortable.”
  • He revealed that he had informed Letterman’s producers ahead of time that he would stay in character to provoke a “dangerous” reaction.
  • Footage from that awkward appearance was later incorporated into Casey Affleck’s mockumentary I’m Still Here.
  • Phoenix reiterated his regret for the stunt and vowed he will never repeat such a performance-driven bit.
  • His remarks coincided with his return to the Late Show to promote Ari Aster’s new film Eddington.