Some of mine were already said:
-Return to Oz
-Less than Zero
-Biggles Adventures in Time
But I don't think these made it:
-The Young Sherlock Holmes
-The Never Ending Story
-Fright Night
-My Best Friend's a Vampire
-Once Bitten
-18 Again
-Brewster's Million
-The Toy
-Bachelor Party (original Hangover)
-Beastmaster
-Soulman
-House
-Lucas
-Johnny Dangerously
-Gung Ho
-Mr. Mom
-One Crazy Summer
-See No Evil Hear No Evil
That's all I have, from my collection, that I'm sure is from the 80's