Screen acting is a multifaceted discipline. It’s not enough for an actor to look the part. They’ve got to sound the part as well. And when they don’t, things can go really wrong really fast. “Sounding the part” has proven very tricky for a lot of screen actors through the decades, including some of the very best performers (with the very best dialect coaches) in film history. Below, I have selected 20 of the most infamous, the most intrusive accents in film history, and provided clips so you can hear them in all their awkward, clumsy glory. And yes, you’ll definitely see a couple Oscar winners…