Below is a heavily overexposed scene from Lord of the Rings. The overexposure lets you see all the details in the shed on the right, the structure on the left, and the plants and ground along the lower right. The blacks might not be very black, but there is plenty of detail.
Click on left thumbnail image for the Epson, Sanyo PLV-Z60 in the center, and the right for the Optoma HD71.
It’s not uncommon for projectors with lesser black level performance to do particularly well on dark shadow detail, since the darkest shadow areas appear lighter, and therefore are easier to see. With a projector with exceptional black levels, the nearest non-blacks are still extremely dark, and more easily lost to sight, especially if there are bright areas nearby.