The ailing-teen romance is a rite of passage for many young stars. Mandy Moore had “A Walk to Remember,” Shailene Woodley had “The Fault in Our Stars,” and never forget the patient zero of these movies: the 1970s cancer tear-jerker “Love Story” that has kept Ali MacGraw forever young on-screen.

These tales of doomed, innocent romance are so wildly popular, drawing alternating swoons and tears from young audiences, that the genre persists, whether it’s sick teens from space (“The Space Between Us”) or sick teens in bubbles (“Everything, Everything”). Now, wild child/former Disney star Bella Thorne gets in on the action with “Midnight Sun,” opposite Patrick Schwarzenegger (son of Arnold).

Directed by Scott Speer and written by Kenji Bando and Eric Kirsten, “Midnight Sun” is the story of 18-year-old Katie, who is afflicted with xeroderma pigmentosum or XP. It means she’s hypersensitive to the sun, and has therefore been shut inside for all of her young life, shielded by tinted windows, lest she instantly break out with skin cancer or have her brain “contract.” Life with XP was also depicted by Brad Pitt in a 1988 film, “The Dark Side of the Sun,” which shares some significant story overlaps with “Midnight Sun” (mostly, sun exposure for love).

Katie mostly lives a quiet life, with only her dad (Rob Riggle) and friend Morgan (Quinn Shephard) for company, though she sometimes ventures out at night to play guitar and busk at the train station. She pines after Charlie (Schwarzenegger), who passes by her house every day, and is shocked when he approaches her at the station one night.


Thanks to help from Morgan, the pair strike up a romance, getting to know each other at night — Katie claims she’s “busy” during the day. She hesitates to tell him about her condition, wanting to be just a girl, not a disease, for just a few days longer. This of course leads to trouble when a special date night turns into an all-night adventure. Will Katie make it home before sunrise?

The sick-teen genre is never lacking in sentimentality, and “Midnight Sun” is dripping with it. The film never holds back on the melodrama either — the choices made are always the biggest ones. Despite the ever-present layer of cheesiness, every now and again, some of those emotions are just big enough to land a somewhat effective blow right to the heart.

The film has a ridiculous storyline with a climax that makes you say “huh?” But the biggest problem with “Midnight Sun” is that Thorne has more chemistry with Riggle, as her dad, than she does with Schwarzenegger. He’s got generic good looks: sandy side-swept hair, a toothy grin, a tall muscled frame, but not an ounce of charisma animates those eyes. Next to him, Thorne radiates.

Yet she often makes the very strange choice to deliver a broad comedic performance, making Katie bumbling and socially awkward (but gorgeous, of course). It’s the kind of over-the-top style native to the Disney sitcoms where she got her start, but feels out of place in this syrupy, inspirational melodrama. It tanks across from Schwarzenegger, who is so stoic and wooden he seems to be carved from lumber. In these slapsticky moments, you can tell she’s working overtime to spark something, anything, but nothing catches fire in this “Midnight Sun.”


‘Midnight Sun’

Rated: PG-13, for some teen partying and sensuality

Running time: 1 hour, 31 minutes

Playing: In general release

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