ILM animator Jon Berg moves an AT-AT model frame by frame for a stop-motion effect.

Modelmakers Lorne Peterson and Ease Owyeung building Boba Fett's Slave I starship.

Effects cameraman Ken Ralston manipulates a damaged TIE fighter model shot on blue screen by motion-controlled cameras.

The interior of the Millennium Falcon cockpit.

Makeup artist and designer Stuart Freeborn with the Yoda puppet. Freeborn based Yoda's face on one very familiar to him: his own.

Director Irvin Kershner talks with Mark Hamill on-set in Finse, Norway, the shooting location for Hoth exterior scenes.

Harrison Ford on the Echo Base hangar set.

David Prowse as Darth Vader on the Cloud City reactor set.

Harrison Ford behind the wheel...

Carrie Fisher, Mark Hamill, and Billy Dee Williams in the cockpit of the Millennium Falcon, between takes.

Irvin Kershner talks with Carrie Fisher, Anthony Daniels, and Mark Hamill.

Mark Hamill and David Prowse rehearse for the duel between Luke Skywalker and Darth Vader.

The all-white prototype Boba Fett armor, modeled by assistant editor Duwayne Dunham.

Irvin Kershner and Peter Mayhew (Chewbacca) plan the Threepio-reactivation scene.

Irvin Kershner shows how to properly ride a tauntaun.

Readying to film Yoda's "fight" with R2-D2 over a stolen lamp.