"Depth?"..are you kidding me?! Um, depth isn't how cinema recordings are mixed. I got news for ya'll! Try to uses some intentionally "deep" imaging loud speakers for movie duties, and you'll have a soundstage that's way to laid back and uninvolving for accurately reproducing the movie experience! At the best Imax and THX movie cinemas, I guarantee you, the presentation is not holographic, with super deep imaging, and sound staging. In fact, it's up front and immediate, with lots of presence. Soundstage depth is not part of the equation at the theater.
Movie/music loudspeakers need to be either near neutral or a bit forward in their presentation, if they're to have any chance of being effective as movie loudspeakers.
Once did a 5.1 channel Thiel 2.3/Krell HT system set up in my home briefly. was the most boring HT system I remember having! (granted, it was very clear with great detail).
Do yourselves a favor...USE THE KIND OF GEAR THE PROFESSIONAL AV REVIEWERS USE IN THEIR SYSTEM! - no brainer