Such films could eventually take the place of in-store book readings, which attract fewer attendees all the time, many booksellers say. “Some authors go to events and are really captivating personalities,” said Dave Weich, the marketing manager at Powell’s Books. “That does not describe most of them.”Oh yeah, like some author with a non-captivating personality is going to sparkle on camera. And who but someone who's already a literary star (which by definition means an author who's already logged many bookstore appearances) can afford to make a film like McEwan's? And let's not forget shelling out for media coaching so said author can act "naturally."
Bosman seems to have overlooked the fact that authors have been doing A/V presentations for some time already. Companies such as authorbytes.com produce websites with streaming video and book "trailers."
Though it may be hard to pull in audiences for in-store author events, I don't think they'll be supplanted by videos. Readers want to see and interact with the real, live person who wrote the book that they cuddle up with for nights on end. And a TV screen can't write a personalized inscription.