Phonics teaching is an important component of the teaching of reading, but not all words in English are phonically regular (the linguist David Crystal estimates 80% are, but the other 20% contains many of the most common words in English).

BBC: Viewpoints: Teaching children to read

The plot is given an extra twist by involving both deaf characters - played by Sarah Beauvoisin and David Ellington and their hearing, signing colleague Ben Crystal - in a complicated love triangle.

BBC: Ben Crystal and Sarah Beauvoisin show off their skills

Written by John Kamps ("Zathura") and David Koepp ("Indiana Jones and the Kingdom of the Crystal Skull") and directed by Koepp, "Ghost Town" is a light comedy about a misanthropic dentist, Bertram Pincus, who develops an unwelcome sixth sense after losing his vital signs for several minutes during a routine colonoscopy.

CNN: Review: Gervais gives edge to 'Ghost Town'