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See it if You love shows like Mean Girls, The Book of Mormon, Something Rotten, etc.
Don't see it if You don't like the idea of a lesbian couple going to a prom
See it if You have seen the movie recently and loved it. Fans of Heathers the Musical will also enjoy since Barrett Wilbert Weed is in this.
Don't see it if You have never seen the movie, or if high school is a particularly bad memory.
See it if You fit in the the target demographic: 5-8 year old girls.
Don't see it if You liked the movie a lot but aren't between 5-8. Unlike the movie, it doesn't appeal to other people. It is excruciating for anybody else.
See it if You love Roald Dahl and the darker aspect of his books.
Don't see it if You saw the London production and thought that it was amazing
See it if You like Andrew Lloyd Weber and like the movie (See the movie-musical version before seeing the show)
Don't see it if You don't like special effects and don't like Andrew Lloyd Weber
See it if You love Spongebob, know somebody who loves Spongebob, or love any of the songwriters (including David Bowie, Panic at the Disco)
Don't see it if You don't like Spongebob, and only like traditional teatre.
See it if You love being a part of the action
Don't see it if You like the traditional musical