Movie errors (continuity/visible crew, etc) in your Bluray movies

[Nostromo]

So I was watching the 35th anniversary edition of Halloween last night. Got to the scene where Laurie, Annie and Lyndsey are walking home from school. Annie makes a smart remark as Michael Myers drives by. He hits the brakes, and at the end of that scene she says "I hate a guy with a car and no sense of humor".

Right after she says that you can see something in the far right of the screen. It looks like some sort of sheet or something blowing in the wind off camera which accidentally made it into the shot.

If you look at the previous BR edition, the sheet or whatever it is, isn't in the shot. But it's definitely in the 35th anniversary edition.