Captain Fantastic (15)

Ben Cash and his wife Leslie raise their six-strong brood in relative isolation so the children won’t be tainted by capitalism or organised religion. Alas, Leslie has bipolar disorder and she eventually takes her own life while undergoing treatment at a hospital. Ben wants to take the children to the funeral, but Leslie’s father Jack forbids him from attending. Unperturbed, the family boards their ramshackle bus, christened Steve, and heads to New Mexico to give Leslie the Buddhist cremation she requested in her will.

https://youtube.com/watch?v=AL2roIsRz5A%3Fcontrols%3D0