For this film we had a great collection of on set Spheron HDR images that capture all the color and light details of the ship interior.  They handed me the full inside gunship fighting sequence with John Malkovich and Josh Brolin and asked me to make all the shaders, do the simple animations, supervise the camera tracks, light, and final the 20 plus shots.  Using the best HDR image out of the collection I created linear color workflow shaders and matched the lighting on set with roughly 30 scaled and placed area lights, which allows Mental Ray with Maya rendering to do the magic.