Ghostbusters: The Legends of Ghostbusters - Cast & Crew Vignette
https://www.youtube.com/watch?v=aVC_V4wHCxM - from the official Ghostbusters YouTube channel (10 mins long).

The blurb:
“Go behind the scenes of Ghostbusters with exclusive interviews from Director Ivan Reitman, Harold Ramis, and Dan Aykroyd.”

Ghostbusters: Making a Ghost - Special Effects Vignette
https://www.youtube.com/watch?v=lsLaynlgKP4&t - from the official Ghostbusters YouTube channel (15 mins long).

The blurb:
"Go behind the scenes with the visual effects and animation team from Ghostbusters for an inside look at how the ghosts and other special effects were created for the film. "

Ghostbusters Special Effects: Slimer, Stay Puft and Library Ghost
https://www.youtube.com/watch?v=4_KuLEjkF1E - from the Ghostbusters.net YouTube channel (3:10 mins long).

The blurb:
“Ghostbusters segment from an episode of Movie Magic.”