As writers, whether fiction or freelance, our works often arise from the things we see around us or the things we wish we could see. Nonetheless, our works also stem from the visuals that have been created for us.
No matter how big my TV may be, no matter how good my BluRay player or DVD copy, The Unbearable Lightness of Being and The Right Stuff are films I want to experience in a darkened theater with a live audience. It's been well over a decade and I can't wait to see them again.
Le Carré succeeds in what most authors dream of but few achieve: he creates fully realized worlds inhabited by complex human beings (well, men) dealing with complex issues. He manages this without resorting to infodumps or appendices.