one thing, the 35 hours work are not only for the French workplace! it is being developped around all the Europeen contries... but it is not illegal to work over 35 hours a week, BUT all hours after 35 hours have to be recuperated... (in other means, you get hours of work off the week after, or you can cumulate it to have more vacations)
but what french people call "cadres" (which are engineers level and above) do not have tha privilege. they can work more than 35 hours with no more benefits.
the 35 hours were SUPPOSED to lower unemployement by limiting work hours for people to have other people employed to take over the rest of the hours! But, one thing the government forgot is that the social charges for the employees are still too high, making it impossible for the compagnie to employe more people... that ways, they (the compagnie AND the employees) lose money, etc...
now the government is going back, saying that it is not illegal to work more than 35 hours a week, and the rules are being "adjusted"....