Eminent linguistics professor Bernard Cerquiglini answers questions about French words from viewers all over the planet. He appears almost daily on TV5’s “Merci professeur.” Can we make “premier ministre” feminine, for example? If you are a subscriber to TV5 on your cable system, you may have seen his program there. Anyone can view these 2-minute segments by web video. The answer is here:
Here is some background on the professor himself, from the French Wikipedia, or if you prefer, the English Wikipedia.