Правильно ли составлено предложения? И есть ли тут ошибки? Если да,то какие? Текст сочиняла сама) The film tells about

Вот исправленный текст без потери общего смысла:

The film tells about a family in which there is no mutual understanding between people. The father is creative person, the mother engages her career. Their older daughter decided to arrange a family weekend with the some tests, which should improve the life of their family.