I loved the concept of this film. If I had a time machine, I would perhaps go straight to the Belle Epoque or Pre-War Paris. This time and (clearly) this place fascinate me. However, the execution of this film was far from credible. Owen Wilson, bless him, is a very one dimensional actor. Don't get me wrong, I think he has made some funny movies. But, each movie he plays the same character, facial expressions, voice tone, etc. So, putting him next to Hemmingway and Gertrude Sten was ridiculous, more ridiculous than I think Woody Allen was intending. The contrast was too jarring. The audience doesn't know when to laugh and when to take the movie seriously. I wanted to believe the environment, but the actors didn't mesh well and the story line was far too abrupt.
The movie also promoted some not-so-subtle undertones glorifying adultery. Allen inculdes a superfluous scene, the sole purpose of which is to explain infidelity as "more evolved," as Wilson's character phrases it. Deep, Woody. Deep. This is followed by a scene in which Wilson's character attepts to steal his fiancé's pearl earrings to present to his 20th century lover. His fiancée (McAdams), malcontent and controlling, is sleeping around with an old friend she saw in Paris. She is continually portrayed as the antagonist, an anti-muse for Wilson's character. So, Woody is attempting to encourage the audience to condone theft? Good wholesome messages.
I also felt that Rachel McAdams was placed in a immature role. There's not much she could have done with that character. Marion Cotillard had a fascinating personage, but the choppy plot line gave very little room for any character development for the roles of either of these actresses.
Though I was disappointed with the execution and the political and moral agenda of the film, I found the idea of it somewhat fascinating. I enjoyed seeing the places I've come to know and love, and seeing Allen attempt to portray old Paris. There were beautiful aspects of this movie, but it was, à mon avis, a let-down.