“Never Rarely Sometimes Always” – Autumn (Sidney Flanigan) is in trouble. She’s the oldest, 17, in a working-class family with younger siblings, her mother (Sharon Van Etten) and an aloof, frosty stepfather (Ryan Eggold), and this troubled teen often feels overlooked. Ignored. Her mom’s semi-disregard for Autumn is not out of malice, but with other kids to tend to, her eldest – in a pinch, when such time-squeezes may appear in bunches – can fend for herself. So, this reserved, unsure-of-herself teenager tolerates her way through her small town in…