Outside of an educational environment, I have never been asked to show any sort of paperwork. Never. I also would suggest YOU never send any sort of paperwork sample cold to a possible employer until requested.
Basically, when I am looking for a Stage Manager, Assistant Stage Manager or Production Assistant all I want is a cover letter and resume with references.
I think in general, and this is my thought, that all the good qualities of the SM can not be summed up on paper - the way you handle pressure, the way you deal with people, the way you look at a show, your sense of humor. When you work for a new theatre or work under a new SM, most of the time you are going to have to adapt your paperwork to the new place you are going to work for. Yes, I can see you can do a prop list, can type a call, etc, etc . . . these are things I usually get from a reference.
Often, when receiving materials from Interns, I actually find that their submitted materials are often a mark against them - they sound great over the phone, the present themselves well in the interview, they have the experience that would make them ideal, but the paperwork they submit is either substandard or "too cute". Make sure when you are submitting materials it is professional.
As far as submitting pages from your calling scripts . . . fine, unless you are doing something amazing in your calling script, I think it is wasted paper. Also, often submitting for a job as intern, you will not be calling a show.
Submitting reviews for a show sends an odd message to the person reading the materials. Does a SM have any control over the quality of the show?

Unless the review says something outstanding about the quality of the technical elements of the show or mentions you by name, I don't think the review is an addition. For example I think some of the best Stage Managing I have ever done is on some of the worst shows I have worked on. I would be VERY careful when submitting reviews.
But, there are still programs that will request some sort of example of paperwork. Just make sure you are submitting the best of your work, exactly what they ask for. ALSO . . . be very careful that any work you submit as part of your portfolio does not include personal or confidential information - such as phone numbers, medical information, etc.