Ugh. I wish I still had my old movie bootlegs that my dad’s friend used to get us when I was a kid. I always wondered why they had the clock in the bottom right corner and why some of the special effects weren’t finished. Then when I saw the movie for real I wondered why the lines wee spoken differently and the music was different to, lol.
Only example I’ll mention offhand was in Men In Black, when Will Smith gets the drop on the alien and points the gun at him when said alien opens the door. Instead of Will waiting for him, Will is out of breath, leaning against the doorframe, and has to cock his gun before forcing out a “What’s up?” very winded lol.