‘Space Cadet’ Review: Emma Roberts Shoots for the Stars

Some of Hollywood’s most durable genre conventions have to do with outsiders and underdogs, often two categories rolled into one, who show up the self-important elites. The cowboy who rolls into town and brings justice in a not-quite-law-abiding way. The lovable con artist who makes a fool of the uppity society folks. The washed-up cop or spy called in for one last covert mission. The stereotypical sorority girl who turns out to be a secret legal genius.

That last one is, of course, the “Legally Blonde” heroine Elle Woods, a fashion major who decides on a whim to go to Harvard Law School and discovers her unconventional qualifications give her insight that her more buttoned up classmates lack. Rex Simpson, the protagonist of “Space Cadet,” bears more than a passing resemblance to Elle, and not just because the actress Emma Roberts could play, at a squint, Reese Witherspoon’s niece. (Her actual aunt, Julia Roberts, played another scrappy underdog in “Erin Brockovich.”)

Roberts’s most famous work might be in Ryan Murphy’s shows “American Horror Story” and “Scream Queens,” in which her knack for playing a certain kind of queen bee — gorgeous, cruel, one crisis away from combustion — makes her a magnetic presence. She’s great at a caricature, elevating those characters to satire without diluting their sugary poison. That flair for exaggeration would seem to make Rex Simpson the right role for her.

“Space Cadet,” a comedy written and directed by Liz W. Garcia, is cast closely along the lines of “Legally Blonde,” with some beats lifted so clearly from that movie I started to wonder if they weren’t meant as jabs. Rex is a neon-wearing bartender in Florida who wrestles alligators and loves to party on the beach, but there’s more than meets the eye: She was a bit of a science genius in high school, and dreamed of being an astronaut. When her mother died, she turned down a full ride to Georgia Tech. By the time she attends her 10-year high school reunion with her best friend, Nadine (Poppy Liu), she’s down in the dumps over her failure to, uh, launch.

A chance encounter with a former classmate who now runs a private spaceflight company sparks something in Rex. It’s time to chase her dreams. So she pops open the NASA website and decides to apply to be an astronaut. One problem, of course, is that she has absolutely no qualifications for the job. But is that a real barrier to Rex, the woman who invented patent-worthy tanning mirrors?

The movie continues in this direction, sending her to NASA in a crop top to become an Astronaut Candidate (or AsCan, a moniker that provides more than a few jokes). Here is where the “Legally Blonde” comparisons come in. There is, for instance, a scene in a classroom where Rex doesn’t know the answer to a stern professor’s question, then one later where she does, demonstrating her growth. There’s a whole sequence in which people look askance at Rex upon her arrival at NASA, thanks to her peppy, kooky outfit that signals unseriousness.