From Variety via Comingsoon.net:
New Line Cinema has picked up feature rights to Neil Gaiman’s graphic novel “Death: The High Cost of Living”. According to Variety, Gaiman is in talks to make his directorial debut on the film.

Gaiman wrote the script based on his own work. The project is currently titled Death’s Day.

The story involves a teenager named Sexton who’s been contemplating suicide. He is rescued by a mysterious teenager who claims she is Death herself, spending one day every 100 years on earth to learn the value of the lives she takes.

The film takes place over 24 hours as Sexton learns to love life by spending a day with Death.

Will post the story from Variety if available.