As reported by our pal Moises Chiullan at Hollywood Elsewhere, there's an issue with the audio synchronization. You're watching the movie, and you notice that, for example, the sickening sound of limbs snapping as a bomb separates them from their owners is being heard slightly ahead of the nightmarish image that accompanies it. This is annoying. Evidently it persists, and evidently it's the disc, not your Blu-ray player.
To their credit, the folks at Paramount have moved quickly, in an operation we're calling Saving Saving Private Ryan. If you've already got one of the faulty discs in your possession -- and ALL the discs out there right now are faulty, whether you realize it or not -- you can return it to the retailer, or call a toll-free number to arrange to have a replacement sent. In the U.S. and Canada, it's 888-370-8621. In the U.K., it's 08000-852-613. Retailers should have the corrected version pretty fast, too -- by next Tuesday, May 18. The fixed copy will have a yellow UPC label, so you can tell it apart from any stray faulty ones still floating around.
Paramount's entire statement on the matter is at The Digital Bits, if you want to read it. The pertinent info is that it was Technicolor's fault. Not to point fingers or anything, but blame Technicolor, not Paramount. But Technicolor is moving swiftly to rectify the mistake, so kudos to them. And at least it rules out sabotage by the Shakespeare in Love people.
(P.S. I saw Saving Private Ryan on a date. We held hands. True story.)