If I were offered the opportunity to travel back in time to watch any ten movies -- and only ten movies -- I wanted on their original release dates, these would be the ten movies:
The Changeling (1980)
The Empire Strikes Back
The Good, the Bad and the Ugly
King Kong (1933)
A Nightmare on Elm Street (1984)
The Phantom of the Opera (1925)
Psycho (1960)
The Seventh Seal
Stargate
Star Wars