Some of the early SC4020 films from Bell Labs were:

J B Kruskal (August 1962): Multidimensional Scaling
Probably the first Bell Labs computer generated animation.
E E Zajac: Simulation of a Two-Gyro Gravity-Gradient Attitude Control System (1963)
Another early film made at Bell Labs. Image much more stable implying a pin-registered camera or the SC4020 on a good day.
K C Knowlton: A Computer Technique for the Production of Animated Movies (1964)
Demonstrates the BEFLIX system developed by Ken Knowlton and later used to make many artistic films.
F W Sinden: Force, Mass and Motion (1965)
A film that was widely shown at the time.
A M Noll: 4-D Hypermovie/Hypercube (1965)
Noll was particularly active later on in the field of computer art.
R H Hudgin and E E Zajac: Programming of Computer Animation (1966)
Describes the conventional way that films were made using the SC4020 hardware.

Most of the films show the jitter on the image due to the lack of pin registration in the Bell Labs camera.

BEFLIX simulated a 252 × 184 8-bit grey level raster image on the SC4020. BEFLIX had a set of processors that walked around the mesh making changes dependent on the contents of the pixel it was examining and neighbouring pixels. On this basic underlying architecture, a rich animation language was defined.

Various areas of greyscale were simulated with patterns:

Bell Labs Nude

Bell Labs Nude Close Up 1

Bell Labs Nude Close Up 2