In addition to whatever this hush-hush project is, the anniversary of Mean Girls will also be celebrated next year with the premiere of Mean Girls: The Musical, a film adaptation of the stage musical of the same name, which hits theaters on January 12.
With a screenplay from Tina Fey (who wrote the original film's script), the movie will be directed by Arturo Perez Jr. and Samantha Jayne. Fey will reprise her role as Ms. Norbury, while Tim Meadows will return as Principal Duvall.
However, the rest of the cast is entirely different from the 2004 film, with Angourie Rice (Cady), Reneé Rapp (Regina), Auliʻi Cravalho (Janis), Bebe Wood (Gretchen), Avantika Vandanapu (Karen), Jaquel Spivey (Damian), Christopher Briney (Aaron Samuels), Jenna Fischer (Ms. Heron), Busy Philipps (Mrs. George) and Jon Hamm (Coach Carr) rounding out the ensemble.