Improv & Famous Film Moments

The role of improvisational skill in largely unscripted movies, like the work of Christopher Guest, is pretty well known. When I watch comedy movies I also often think that particularly spontaneous moments, a joke here or there by Tina Fey or Will Ferrell, might be off the cuff. However in the following video there are several famous film moments that I definitely thought were written into the script, but can be more credited to the in-the-moment chops of the performers acting. Totally worth a look-see: