The Slovenian dancer was pictured on set earlier this year, but it seems his musical number didn't make it into the finished film.
The Oscar winner's take on Roald Dahl's classic villain has been hailed as a scene-stealer in this new musical.
The Oscar winner is seen in action as the abusive headteacher for the first time in the newly-released teaser.
"I was terrified. I thought people were going to tell me I was crazy."
'Many clearly see in him some similar traits to the fictional headmistress Miss Trunchbull.'