Neither side has confirmed it, but it looks like Amazon's latest pricing battle (after Warner Bros. and its ongoing battle with book publisher Hachette) is with Disney. That's why you can't pre-order a copy of Guardians of the Galaxy on DVD or Blu-ray from Amazon right now, even though you can at other retailers like Best Buy. Home Media Magazine points out that the same goes for other upcoming Disney releases like Maleficent, Captain America: The Winter Soldier and Muppets Most Wanted. In some cases, like GotG, you can sign up for a notification for when they're available, others are just missing from the virtual shelf entirely, but what Amazon will offer is a pre-order for the digital copy on its Instant Video service. Amazon and Warner squabbled for a few weeks before a truce ironed things out, hopefully they can resolve things with Disney in time to cook up a boxed set bonus for the baby version of a certain Guardians character we absolutely must have (and aren't willing to pay $360 for).