Is Amazon right to block book and movie orders during contract negotiations?

To gain an edge in its negotiations for a better deal from Warner Bros. on sales of its DVDs and digital downloads, Amazon, the world’s biggest online retailer, is blocking pre-orders for Warner Bros. movies such as The Lego Movie and Winter’s Tale.  It’s the latest of the online retailer’s contract feuds to spill into public view. Amazon is already in a standoff with Hachette Book Group over e-book pricing in a tussle that will help determine whether publishers can gain any leverage against the online retailer and biggest seller of e-books. To ratchet up pressure on Hachette, Amazon started delaying shipments and blocking some book pre-orders—including big-name titles by big-name authors, such as The Silkworm, J.K. Rowling’s new novel written under a pseudonym.Note: There is a poll embedded within this post, please visit the site to participate in this post's poll.