Look at Me (2004) on Netflix

Lolita, plump, in her 20s, desperately wants her father's attention. He's egotistical, a famous writer and publisher with an attractive wife little older than Lolita. She's in a choir, rehearsing for a concert; she's given her father a tape, which he's yet to listen to. Sylvia, a voice coach, is willing to help the group, knowing she'll have a chance to get her husband's new novel in front of Lolita's father. For Lolita, this is a pattern: people pay attention to her to gain access to him, something she fears is the intent of Sébastien, a struggling journalist who may become her boyfriend. The night of the concert, the music may bring out everyone's feelings.