Two things:
Drew Barrymore in Scream: Her character dies in the first 5 minutes, and she was killed early intentionally. Audiences weren’t familiar with horror/thriller films where a headliner would actually die so early. It was a surprise and served to throw the Audience right at the beginning of the film.
Spacesuits: I haven’t seen this movie in a LONG time (still need to watch). Here’s the story I came up with somehow: I always assumed that the people wearing the astronaut suits were doing so to provide a good PR. “We’ll go to the kid’s house wearing EVA suits! The kids will love it!”
And then some slick-hair evil guy says “No! We have to get the alien right now!” and so everyone rushes in. So: Spacesuits for PR, Environmental suits for the people who are actually going to be handling the alien.
And I’ve used an awful lot of colons in this post.