“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 them to get a bit of a comeuppance about their smug condescension. High school might be awful, but so is considering yourselves so vastly superior to everyone else. This movie is overflowing with goodwill toward all of the usual high school line-up, from druggie to rich boy who tries too hard, from drama geeks to jocks to skater kids to the girl known as AAA because of the “roadside assistance” she has given at least three boys.

Graduating high school seniors Amy (Kaitlyn Dever of “Short Term 12”) and Molly (Beanie Feldstein of “Lady Bird”) love being BFFs and they especially love feeling near-contempt for everyone else at school by virtue (and they mean Virtue) of their dedication to hard work, good grades, impressive extracurriculars, and acceptance at top schools. They are also irresistibly cute in the way they compliment as well as complement one another.

Molly wakes up to taped affirmations, her bedroom festooned with images of the women she identifies with: Justice Ruth Bader Ginsburg, Michelle Obama. She is class president and valedictorian. She will be at her dream school and her best friend will be just two hours away in the fall. Everything she has worked for has turned out exactly as she planned.

Except not. When Molly and Amy learn to their horror that the kids who partied also got into great schools, even Yale, they experience a complete existential meltdown. Their most fundamental understanding about the world and their own place in it is shattered. And so, they decide, or, rather, Molly decides and pushes Amy into it, they should make up for lost time and spend their last night before graduation having four years’ worth of fun.

They are not sure exactly what that looks like. Their matching jump suits suggest they have no idea whatsoever, but on the other hand the essentials they tuck into their handy belt bag, including Mace and hand sanitizer, suggests that they might.

They have not exactly been invited to any of the parties, so they have quite an adventure, including some stops at the wrong parties. A lonely rich kid (Skyler Gisondo as Jared) waits hopefully as no one shows up on the yacht where he hoped to host his classmates. Then there’s the drama kids, the ones who plan to spend the summer putting on productions of Shakespeare in the Park-ing lot, who of course are hosting one of those tedious dress up and guess who did the murder parties. In order to track down the party they want, they end up enlisting the help of a favorite teacher (a winning Jessica Williams, showing us how cool booksmart can be), taking an Uber driven by their high school principal (Wilde’s husband, former “SNL” star Jason Sudeikis), and pretending to rob a pizza delivery guy (“SNL’s” Michael Patrick O’Brien).

Molly and Amy take some risks, including making an effort to actually interact with their crushes. They also get high (a very, very funny sequence I won’t spoil except to say it involves stop-motion animation) and learn some important lessons about some of their other assumptions. And they have an unprecedented fight, which hurts their feelings but ends up bringing them closer.

Parents should know that this movie has extremely strong and vulgar language, comic peril and violence, and teen partying including alcohol and drugs.

Family discussion: Why didn’t Amy tell Molly the truth about her plans? Why were they so wrong about their classmates?

If you like this, try: “Superbad,” starring Feldstein’s brother, Jonah Hill