Travis Walton, the most famous alien abductee has a cameo as himself during the end credit.
At about 17 minutes, when Chris & Brent first visit the Seti Alpha 5 curio shop, Chris says "...so you think that this is an extra-terrestrial?" and the shop owner says "Absolutely". The shop owner (Lucille) is played by Dee Wallace who played Elliott's mother in "E.T. The Extra-terrestrial".
The movie was first developed as FMS: False Memory Syndrome, but the distributor re-titled the film Beyond the Sky.
Fulvio Sestito the director did most of the VFX compositing himself.
Dee Wallace's shop is, in fact, a prop house in Los Angeles County called Dapper Cadaver.