Paramount Animation’s Mighty Mouse movie is finally gaining momentum now that Ryan Reynolds’ Maximum Effort Productions banner has officially signed on to produce the project.

A Mighty Mouse film has been in development at Paramount for a long time, with trade press mentions going as far back as the early 2010s and a live-action/animated take from Jon Hoeber and Erich Hoeber reportedly pipelined in 2019.

Not much is known about the new iteration, but it falls under a first-look development deal between Paramount Pictures and Maximum Effort that was renewed in February until the end of 2026. Free Guy scribe Matt Lieberman—whose family-friendly credits include Scoob! and The Addams Family—will write the script, and Paramount’s animated features VP Brad Butler has been tapped to oversee the project.

The Mighty Mouse IP was originally created by New York-based Terrytoons as a series of theatrical shorts, starting with 1942’s The Mouse of Tomorrow. They went on to spawn popular CBS Saturday morning cartoons like Mighty Mouse Playhouse (1955 to 1967) and The New Adventures of Mighty Mouse and Heckle & Jeckle (1979 to 1980).

The franchise was originally designed to parody and pay homage to Superman. Mighty Mouse was similarly endowed with special powers like flight, speed and heat vision, and he also eventually juggled his superhero alter ego and real identity as Mike Mouse in ’80s series Mighty Mouse: The New Adventures.

Pictured: Matt Lieberman (left) and Ryan Reynolds in this year’s live-action/CG-animated family feature IF.