Washington, Oct 22 : "Superman Returns" scribes Michael Dougherty and Dan Harris will not be penning the new movie in the series.

Director Bryan Singer was hoping the two would join him once again but Dougherty and Harris has opted out.

As a result, studio Warner Bros. is now inviting other writers to send in their pitches.

The studio has also insisted that there will be a new lead hero, and said that Brandon Routh is likely to wear the "S" again.

Legendary Pictures is co-developing and co-financing the project.

In the meantime, Dougherty and Harris are pursuing more directing gigs, with Dougherty having recently completed "Trick 'R Treat" at WB as his first pic. He's also looking to pen a graphic novel and children's book.

Harris, who had previously helmed "Imaginary Heroes," is writing and directing "I, Lucifer," based on the book, with Daniel Craig attached to star. (ANI)