Kiefer Sutherland

Photo: Juan Rico, Fame Pictures

It's all over, folks. Nothing to see here.

The Manhattan district attorney's office has dropped assault charges against Kiefer Sutherland, who had been accused of head-butting Proenza Schouler designer Jack McCullough after May's Metropolitan Institute Costume Gala.

The AP reports the charges were dropped because the person alleged to be the victim wouldn't co-operate with prosecutors, according to a spokeswoman for the DA.

McCollough and Sutherland issued a joint statement a few weeks ago saying they had resolved their differences.

The alleged incident left McCullough with a broken nose, and reportedly annoyed Vogue editor Anna Wintour, who runs the Costume Institute ball.

We're happy everyone has decided to forget and forgive. Now we can focus on the happier memories and all these pretty pictures.

The 2009 Costume Institute Gala

    Honorary Chair Marc Jacobs with co-host Kate Moss in a custom dress by the designer and Harry Winston jewelry.

    Stephen Lovekin/Getty Images

    Vogue's Anna Wintour, in Chanel Haute Couture.

    Dimitrios Kambouris/FilmMagic

    Gisele Bündchen, in Versace.

    Dimitrios Kambouris/FilmMagic

    Victoria Beckham, in Marc Jacobs with Chopard jewelry and Louis Vuitton shoes.

    Stephen Lovekin, Getty Images

    Madonna, in Louis Vuitton.

    Stephen Lovekin/Getty Images

    Designer Donatella Versace with model Cindy Crawford, both in Versace.

    Kevin Mazur/WireImage

    Co-host Justin Timberlake, in bespoke William Rast, with Jessica Biel, in Versace Atelier.

    Stephen Lovekin/Getty Images

    Model Shalom Harlow

    Stephen Lovekin/Getty Images

    Actress Anne Hathaway, in Marc Jacobs and Van Cleef & Arpels jewelry.

    Stephen Lovekin/Getty Images

    Actresses Liv Tyler and Kate Hudson, with designer Stella McCartney, all in Stella McCartney.

    Larry Busacca/Getty Images