A dying 15-year-old boy draws stories of an invincible superhero as he struggles with his mortality.
Andy Serkis
as Dr. Adrian King
Thomas Brodie-Sangster
as Donald Clarke
Michael McElhatton
as James Clarke
Sharon Horgan
as Renata Clarke
Aisling Loftus
as Shelly
Lilly Forgách
as Shrink #1
Ian Fitzgibbon
as Shrink #2
Ronan Raftery
as Jeff
Sean Duggan
as Teacher
Enda Oates
as English Teacher
Emma Eliza Regan
as Morna
Jessica Schwarz
as Tanya