Now that Richard Linklater’s 12-year odyssey to make Boyhood is out of the way, he’s moving full steam ahead with the long-gestating remake of the 1964 animated comedy The Incredible Mr. Limpet.

Zach Galifianakis is already attached to star, but he now likely to get some impressive company, as TheWrap reports that Jon Hamm, Kevin Hart, Danny McBride, Sarah Silverman, Josh Gad, Keegan Michael Key and Jordan Peele are all in talks for the movie.

The part live-action, part animated 1964 original starred Don Knotts as a man who wishes he was a fish (doesn’t everyone?), which then becomes true. The first version is set during World War II, where Limpet goes off to fight the Nazis, although this new version will be told in a contemporary setting.

Zach Galifianakis will play the lead role of Henry, with Jon Hamm as the main villain. Danny McBride and Sarah Silverman are likely to get live action roles, while Kevin Hart, Keegan Michael Key and Jordan Peele are expected to voice sea creatures.