Rennes tomorrow?

My wife and I might go to Rennes tomorrow, to see an old friend of mine, if we manage to get the train schedules correctly and if my friend has time to see us. The countryside is nice, but I cannot wait to see some civilisation. Today we went to a French-English get-together in the communal room of a (the only?) local bar. We tasted a bit of local cuisine (the desserts are absolutely delicious, I got the recipe of an abricot cake). The beers in the bar are from Belgium, strangely enough. I guess France (even in Brittany) is a country of wine, not beer, and I should have tried local wines.