20 Actors Who Just Gave Their Best Performance Ever

Judy Greer might well be one of the most underrated actors of her generation, because her enviable filmography of more than 150 credits - typically supporting roles across TV and film - doesn't do justice to her obvious potential as a lead performer.

But Greer was cast as the central character in Michael Shannon's recent directorial debut Eric LaRue, where she plays Janice, a mother whose teen son killed three classmates in a school shooting.

It's a tough, tricky part, as Janice reckons with her own role in raising her killer son, and how much responsibility - if any - she should shoulder for his actions.

In stark contrast to the many plucky, supportive wives and mothers Greer has played on-screen over the decades, here she gets to give a too-rare portrayal of those same roles in crisis, and it's all the proof the world needs - if it somehow still does - that Greer is a fiercely underappreciated dramatic performer.