W. Scott Simmons - Exercise 5 (again) - Head Turn With Anticipation (lots of anticipation)

A51 Exercise 5 - Head Turn With Anticipation (again!) from W. Scott Simmons on Vimeo.
Here's a second go-round on Animation 51's 5th exercise - the head turn with anticipation. In this case, it's almost entirely anticipation!

No longer a work in progress (unless someone gives some compelling feedback).

Can you guess what scene from what film I was trying to reproduce?