You would think, but no. Two versions of that movie shipped to theatres. Some already had a new soundtrack.

Also, if the Star Wars movie you saw had Episode IV A New Hope … you have not actually seen the original as that movie was just “Star Wars”.

There is no original version of Star Wars. G Lucas started changing theatre’s. movie while it was still in theatres. He sent an updated sound cut in theatres 90 days after it released.