Flight of the Navigator

Take off on the ultimate fantasy adventure

The year is 1978, David Freeman (Joey Cramer), a 12 year old boy goes missing. Eight years later, 1986, David reappears, but hasn't aged a bit and he doesn't remember anything that happened after the night he went missing. The same night David reappears a UFO crashes and is found by the government.

It has been a long time since I've seen this movie. I believe Sarah Jessica Parker's character is a young girl that helps David escape a few situations and helps him in trying to figure out what happened. I remember the spaceship being pretty bad ass. I remember eagerly awaiting the movie, and remember not being disappointed by it.

Addendum: According to the "Relativity Calculator" (http://www.1728.com/reltivty.htm) the Navigator's travel speed was 0.9999999983710723 * C, or 299792.45751165977 km/sec. That's assuming that the ship accelerated instantaneously (a dubious prospect) and maintained the same speed afterwards.