In 2011 he appeared in a test scene for a movie project about American multiple murderer Richard Kuklinski. In the short, directed by
Ariel Vromen, he played Robert "Mr. Softee" Pronge while
Michael Shannon impersonated Kuklinski. The movie, called
The Iceman (2012), entered production at the end of the same year; Shannon kept his role while
Chris Evans was chosen to play Pronge because Vromen wanted someone younger for that part. The director offered Wincott another role, but the actor wasn't happy with it and amicably refused. Wincott was thanked in the end credits.