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“Booksmart” is the movie you hope for. Just as the summer blockbuster season charges in with with all of its car crashes and superheroes and CGI and budgets the size of a small country’s GNP, here comes a fresh, funny little film filled with heart and a bunch of instant favorite performers from booksmart and smart-smart debut director Olivia Wilde. It gives us two adorable heroines to root for, but that does not mean we don’t also root for…