Andrew W. Marlowe was hired to write the script in 2006. The script he wrote was loosely based on Jim Steranko's Nick Fury, Agent of S.H.I.E.L.D. series and involved the S.H.I.E.L.D. Helicarrier. The script was not written for the version of the character appearing in the Marvel Cinematic Universe, as it was constructed before Samuel L. Jackson was cast. Marlowe said that the script could be "tweaked" for Jackson's portrayal, but no further developments took place.