This is a true masterpiece. The filmmakers proved that you can still create an original and never-seen-before concept for the big screen. Two producers close to bankrupt try to find a last idea to escape their financial problems : find as many ex-stars from the 80's as possible to make concerts all over France... Most of these stars are known only in France (except Patrick Hernandez and Sabrina) but I think you can enjoy the movie even without knowing them all. True : if you lived this period, then the film becomes fascinating. A real cult movie. But you might also do the travel backwards : from the movie on going back to explore this incredible decade. All the stars are acting as themselves : that gives to the film this amazing impact. The worst are acting OK (most of them to be honest), the best are stealing their scenes (Jean-Luc Lahaye, who was a superstar in France and even had a TV-show to help poor children and wrote a all time best-seller about his childhood). The main duet is fantastic : Richard Anconina is one of the most natural actors of french cinema and Patrick Timsit launches every dialog like a bomber, they even manage to be very (very) moving towards the end. There's just one scene (at the hotel) that seems to be directed by french ed wood Max Pecas, all the rest is pure genius. I was convinced this could become one of the greatest hits in french cinema history. Sadly it's becoming a flop, completely unexpected and undeserved.