In September 2008, Colfer was commissioned to write the sixth installment of the Hitchhiker's Guide to the Galaxy series, titled And Another Thing ...,[1][2] which was published in October 2009.

[4] Soon after graduating, Colfer spent four years working in Saudi Arabia, Italy and Tunisia.

[7] Among his other popular works are Half Moon Investigations, The Wish List, The Supernaturalist, and a series of Eoin Colfer's Legends.

In April 2014,[23] principal photography began on a new Irish feature film Poison Pen, the first screenplay from Colfer.

[25] On 1 September 2015, Variety reported that Kenneth Branagh had been hired to direct Artemis Fowl for Walt Disney Studios Motion Pictures, with Irish playwright Conor McPherson as screenwriter and Judy Hofflund and Branagh as producers.

[26] Colfer confirmed this in a video to Artemis Fowl Confidential,[27] and spoke with RTE Radio 1 about meeting Branagh several times to discuss the film prior to the announcement.

[30] The film was pulled on 3 April 2020 due to the COVID-19 pandemic, and debuted on Disney+ on 12 June 2020 instead of a theatrical release, to overwhelmingly negative reviews.