Justin Marks has come on board to rewrite Disney's remake 20,000 Leagues Under the Sea: Captain Nemo, which McG will direct, Variety reported.
The reboot will serve as an origin story for Nemo as he creates his warship, the Nautilus. The film is based on characters from the Jules Verne novel and the 1954 film, which was the first live-action film made by Walt Disney.
The studio is fast-tracking the project, which will be McG's next after completing Terminator Salvation.
Marks wrote scripts for He-Man and the Masters of the Universe, Voltron: Defender of the Universe, Street Fighter and a Green Arrow movie. The first draft was penned by Bill Marsilii.
Sean Bailey (TR2N) is producing with McG's Wonderland Sound and Vision.