The interior shots were filmed on an Introvision stage in Hollywood.

That train effect was achieved through Introvision, a new process that is both clever and innovative.

Raimi's use of the Introvision process was a tribute to the stop-motion animation work of Ray Harryhausen.

Most movie companies brought small units to the Introvision sound stages near Poinsettia and Santa Monica Boulevard in Hollywood, California.

Introvision International was a special effects company that worked on several big Hollywood films in the 80s and 90s, primarily using their Introvision front projection system.

(The huge castle used for a backdrop is one of several settings achieved convincingly with Introvision, a visual effects process that eliminates the need for elaborate sets.)

In 1993, Visual Effects Supervisor William Mesa left Introvision International to direct the low budget science fiction film Galaxis.

The film makes extensive use of the IntroVision process, a variation of front projection that allows realistic three-dimensional interaction of foreground characters with projected backgrounds without the heavy cost of traditional bluescreen effects.

As with other front-projection systems, Introvision made use of the light reflectance characteristics of the Scotchlite screen, which returns light to its source virtually undiminished, but only directly in line with that source.

Adding substance to the promise is Robert Hays, who, courtesy of a process called Introvision, plays both Hank and Biff and, for those who like tricks, can even put his arm around himself when required.

Another benefit to the Introvision process was the ability to place an actor 'inside' a plate, meaning an actor could walk vertically or laterally inside a two-dimensional background image and seemingly go behind objects within any given environment.

Outland was the first motion picture to use Introvision, a variation on front projection that allows foreground, mid-ground and background elements to be combined in-camera, as opposed to using optical processes such as bluescreen matting.

During its heyday, starting with the feature film, Outland in 1981, Introvision enjoyed the novelty of visual effect compositing in-camera, thus eliminating the need to wait for photo-chemical compositing to determine if the effect shot was successful.

He became an independent producer/director, and formed his own production company, where he became the head of the company, Ginty Films, buying shares in the special effect studio Introvision that distributed his vehicles both here and abroad.

President of Introvision Systems, Tom Naud, explained it this way: "Introvision utilizes a Scotchlite screen - ours happen to be thirty feet tall by sixty feet wide-so in that regard, we're front screen projection.

R. With an assist from Introvision, a visual-effects process that creates huge scenes without elaborate sets, Sam Raimi's tale of swords and sorcery cruises the Middle Ages looking for causes and conquests with a wise-cracking hero named Ash (Mr. Raimi).

Adventures in Babysitting employed IntroVision to place children in multiple situations of peril such as hanging from the rafters and scaling the "Smurfit-Stone Building" in Chicago, and Stand By Me used IntroVision during the train sequence.