Update 4/21/15: This is now on sale! The Emmet version, limited to 300, is available, as is black vinyl.
Over at SpaceLab9, you can now pick up your copy of The Lego Movie soundtrack, which has been pressed on a couple variants. You have “Emmet” vinyl, which is an orange and blue split wax, and “Wyldstyle,” which is a clear with multiple color splatter vinyl. The double LP also includes a lego figurine of the SpaceLab9 crew and a booklet.
A Record Store Day edition was released, which was a picture disc. The site may be jammed up right now, but keep trying.