Christian Ditter (born 1977) is an award winning director, producer and screenwriter who has worked on films, television and commercials. He is best known for his films The Crocodiles (2009), Love, Rosie (2014), How to Be Single (2016), and the Netflix series Girlboss (2017).

While in school, Ditter's short films Enchanted (2000) and Grounded (2003) won numerous awards at international film festivals. His debut feature film French for Beginners hit theaters in 2006. He subsequently directed on the Adolf Grimme Prize and the German Television Award-winning series Turkish for Beginners (2007) and on the award-winning series Doctor's Diary (2008).

In 2008, he adapted the popular German children's book, The Crocodiles, for the big screen. The film won over fifty audience and jury awards at international film festivals and was followed up by two sequels, The Crocodiles Strike Back (2009) and The Crocodiles: All for One (2010), which he directed and produced respectively. He moved on to writing and directing Germany’s first major adventure film shot entirely in 3D, Vicky and the Treasure of the Gods, which debuted at No. 1 in the German box office.

In 2014, he directed his first English-language feature Love, Rosie starring Lily Collins and Sam Claflin. In 2016, he followed it up with his U.S. debut How to Be Single starring Dakota Johnson, Rebel Wilson, Leslie Mann and Alison Brie. After working with Kay Cannon on How to Be Single, they partnered with Charlize Theron's company Denver and Delilah to create the Netflix series Girlboss in 2017, loosely based on the book #Girlboss by Nasty Gal founder Sophia Amoruso.

Ditter is currently serving as the showrunner-director on the Netflix series Biohackers, which is set to be released in 2020.

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