‘All Summers End’ wastes strong cast with bad choices

There’s much a filmmaker could do with a cast like the one “All Summers End” has — led by Tye Sheridan and Kaitlyn Dever as love-struck teens, and Paula Malcolmson and Annabeth Gish as their moms — but writer-director Kyle Wilamowski smothers his bid for nuanced emotion in the cardboard mechanics…