TedStixon

Suggested correction: You are incorrect, but it's an understandable mistake to make because the scene is very dark. It's hard to see, but Laurie actually uses both hands to break the glass... she puts them together and then slaps them through the window in a quick, fluid motion. (If you go through frame-by-frame or in slow motion, it's much, much easier to see.) That's why you're seeing two hands. It's not a crew member's hand... it's Jamie Lee Curtis' other hand.

TedStixon

Correction: This is incorrect. It's a little hard to see, but if you pay attention, there is some blood on the bottom edge of the knife when the camera cranes back. Look up the YouTube video "Halloween 1978 - Young Michael Myers" and watch around 1:45 through the end of the video - blood is definitely visible on the knife.

TedStixon

Correction: Michael does not know where Laurie lives. He first sees her when she drops off the key to the Myers house and he follows her throughout the day. This is how he finds out where she lives (so he can appear in her back yard).

Floyd1977

Correction: When this film was made, the idea that Laurie was Michael's sister wasn't part of the plot yet. Hence, no mistake here. As far as this movie is concerned, Michael is merely stalking random babysitters. If anything, it's a mistake for the sequel that introduced this plot element.

TedStixon