D: Jan Ole Gerster (A Coffee in Berlin).
S: Corinna Harfouch, Tom Schilling, Maria Dragus, Volkmar Kleinert, Gudrun Ritter, Mala Emde.
A German anti-WHIPLASH, from the perspective of the narcissistic teacher. And is worth the seven-year wait for director Jan Ole Gerster's sophomore narrative feature.
My review: http://www.filmaluation.com/lara.html