Re: How did TMP get a G rating?
The Black Hole
As far as I'm concerned... The transporter malfunction in ST:TMP is good clean fun for kids of all ages when compared to the sound of Maximillian's rotating claws drilling into the chest of Tony Perkins, in "The Black Hole", which came out the same year, was also G-rated, and was a freakin' Disney film to boot!
was rated PG. It was Disney's first PG production (second released) [http://en.wikipedia.org/wiki/The_Black_Hole#Production
]. I remember that it was a big deal at the time.