I went into this film in Sydney with very little in the way of expectations. I found it extremely funny, and Canet is extremely self depreciating throughout the film as he looks as his life as an elder statesman of French cinema. The film is very funny, and excels in revealing the nuances of French cinema through Canet and his wife Marion Cotillard. I felt that it definitely could have been about half an hour shorter, so could have done with tighter editing perhaps. However, if you want a feel-good film look no further. Allez Canet.

Guillaume Canet is told by a young co-star that he's no longer Rock'n' Roll and can't sell films anymore. He then tries to prove her wrong and gets help from his girlfriend, Marion Cotillard. Thanks to 2 great perfomances from Guillaume Canet and Marion Cottilard Rock'n Roll succeeds on providing great laughs but also some moving and terrific scenes from the 2 talented actors who seem to have a great time and a real chemistry in general but also some great messages about fallen idols and how age can change someone's life to the worse or in this case? to the better. (10/10)

Guillaume Canet had shown us films much more interesting.This one is really bad. Neither the scenario, nor the image, nor the sound are good.What is the meaning of this film? Making Money Easily by Taking Guillaume Canet and Marion Cottilard in the casting.It's really a movie to avoid. In the jargon: a turnip.

I'm surprised that the rating isn't higher because this is one of the best French films I've watched! I'm Canadian and my husband is French and there are plenty of jokes that made me appreciate the film. You'll know what I'm talking about if you actually watch the film. I don't want to spoil it for the audience. Both Guillaume Canet and Marion Cotillard did a fabulous job poking fun at themselves and their careers. They kept the film light yet not cheesy. Well done!