The Gadget Show recently ran a test of film vs digital cameras for a studio image. Their first show did exactly the same test of film vs digital and back then film came out on top.
http://fwd.five.tv/videos/challenge-blow-up-part-3
This time interestingly they judged the digital camera to produce the best image which was felt to be clearer with better colours and less grain (digital noise). Admittedly the test was based on images blown up to 5m across and in a studio setting but in theory a professional digital camera should perform even better in low light real life situations such as a church for a wedding. Low light shots with the latest full frame digital SLRs like the Canon 5D and 5D Mark2 give options that could only be dreamed of with film and with the flexibility to change settings between each shot if needed.
So is your photographer using digital - if not why not!!
