I'll be traveling from Rennes France to Amsterdam in May and have to change trains in Paris. I'll arrive at the Montparnasse station and depart from the Nord station. It appears I'll have right over an hour to get from one station to the other; will be this be sufficient time and what would be the best way to get from one station to the other? Also, I was reading another person's question about check in time and passport check; is the train stations in France like going through an airport with security/passport checks? I don't remember this being an issue when I was last in Europe in 2013.
Thank you