We brought our children, 5 and 6 at that time, home from Russia last November. It was a 10 hour flight home and the time difference between Moscow and EST is 8 hours. Let me just tell you that the kids did great.
Now, mind you, after 10 hours of flying, our bodies were telling us that it was midnight when we landed at JFK. Then, we had to drive what should have been 2.5 hours home, but it took us 4 because of the NYC traffic. The kids both got sick in the car. I think Kristina's body was telling her enough was enough. Ivan got sick because of the smell that was in the car after Kristina got sick. Thankfully, my Mom is always prepared and she had plastic bags in the car and there were enough nap kins saved from Dunkin Donuts and McDonalds to clean up without having to pull over. She also had purell for our hands after cleaning up. Sorry about the picture I've put in your head.
Anyway, they adjusted to our new time zone in a matter of 2-3 days. I, on the other hand, thought I'd never get to see 10:00 at night again for the rest of my life. I finally felt human again after about 2 weeks.
The kids had some coloring books to keep them occupied and a game boy, not much else. They sat next to the windows and watched the horizon and plus the flight attendants were constantly bringing snacks and drinks and we were up and down alot to use the bathroom... the kids thought it was cool and liked the loud "whoosh" of the toilet.
Going to Paris should be easy because the flight over will be at night, so your DD should sleep. Back shouldn't be that bad either since her jetlag will not be as bad as yours, since her job is to play all day and whether your a SAH Mom or work outside your house, your job is to do everything for everyone.
Have a wonderful trip!