The France Gall song “Résiste” performed by Sabine Azema in the Alain Resnais movie “On connaît la chanson” :

The Téléphone song “Ça, c’est vraiment toi” performed by Pierre Arditi in the Alain Resnais movie “On connaît la chanson” :

The Sheila song “Papa t’es plus dans le coup” interpreted by Ludivine Seigner in the François Ozon movie “8 women” :

The Coryne Charby song “Pile ou face” sung by Emmanuelle Béart in the wonderful movie “8 Women” by François Ozon :

Catherine Deneuve sings the Sylvie Vartan song “Toi jamais” in the movie “8 Women” directed by François Ozon :

The Marie Laforêt song “Toi mon, amour mon amie” performed by Virginie Ledoyen in the François Ozon movie “8 Women” :

The Nicoletta song “A quoi sert de vivre libre” sung by Fanny Ardant in the François Ozon movie “8 Women” :

Funny scene in which Jean Dujardin sings the Dalida song “Bambino” in “OSS 117 : Cairo nest of spies” directed byMichel Hazanavicius :

Beginning of the movie “OSS 117 : Rio doesn’t respond” directed by Michel Hazanavicius :

Yann Tiersen music in the movie “Amélie” directed by Jean-Pierre Jeunet :

Great scene from “The fifth element” directed by Luc Besson on the Diva Pavalaguna’s Opera :

Veerle Baetens sings the Barbara’s song “Mes hommes” in the movie “Un début prometteur” :

Leonie Simaga sings in “Que d’amour” directed by Valérie Donzelli :

Sources : https://www.youtube.com/ and http://www.dailymotion.com/