Rachel Weisz, “Ashraf Barhom and Oscar Isaac plan to star in Alejandro Amenabar’s film, which is untitled but is being prepped to shoot in Malta.

Amenabar wrote the film, which is under a veil of secrecy.

Alas! A hint! The film is a historical drama set in early Egypt. The story involves a slave who turns to Christianity to pursue freedom, and then falls in love with his master, a female philosophy professor and atheist. You guessed it: Weisz plays Hypatia, the Alexandrian professor.