When you're reading a book, you're always looking for the natural place to stop. With a movie, you can't really have that sense of it coming momentarily to a halt; there's pressure to keep the momentum up.
I know that for every reader who has lost the habit or can't find the time, there are people who've never enjoyed reading and question the value of literature, either as entertainment or education, or believe that a love of books, and of fiction in particular, is sentimental or frivolous.
A screenplay is really an instruction manual, and it can be interpreted in any number of ways. The casting, the choice of location, the costumes and make-up, the actors' reading of a line or emphasis of a word, the choice of lens and the pace of the cutting - these are all part of the translation.
…she was discovering once again that reading and writing were not the same — you couldn't just soak it up then squeeze it out again.