The Princess Bride
This is one of my all time favs. It is as heartwarming as it is hysterical! A must watch.
Honestly, I could do without Kingdom of the Crystal Skull (which din't come out in the 80's anyway), but the other 2 are outstanding and it seemed easier to add the trilogy then. Also, Temple of Doom, while released in the 80's, was a waste of my time, don't bother with it.