"If you have ever shot a high contrast scene, you know that selecting the correct exposure will not avoid blown out highlights and flat shadows. Photomatix Pro offers two ways to solve this problem, exposure blending where differently exposed images are combined into one image with increased dynamic range or HDRI + tone mapping where a High Dynamic Range Image (HDRI) is created from multiple exposures. The HDRI is then tone mapped to compress its tonal range while preserving local contrast." Photomatix is a simple and easy way to fix exposure problems on troublesome shots. Its not automatic (you need to make sure you have images you can acomplish this on), but
once you do you'll have a great looking image.