I'm in French Guyana, the equatorial part of France near Brazil.
Our seasons are rain season, short hot "dry" season, rain season, long hot "dry" season.
I put "dry" in quotes because that's what we call them but they are nowhere near as dry as someone from southern USA would consider as dry. They are dry compared to the rain season.
I heard this too.
The problem is that Alec Guinness's acting is so subtle and the shot of his face is so quick, It's very easy to miss even when you know it's there.
And frankly, Han not knowing what a parsec is doesn't makes that much sense either.