Tangled

Long ago, a single drop of sunlight fell to Earth from the heavens, and from that droplet sprang a magical flower with the power to heal all ills. A woman named Gothel used this power for centuries to keep herself eternally youthful and attempted to hide it for herself. A small, very prosperous kingdom cropped up nearby in the meantime. But one day, the kingdom's pregnant queen fell deathly ill. The kingdom sought out the legendary flower, and found it, thanks to a slip-up in Gothel's vigilance. Once given an infusion of the plant, the queen was fully healed. Her daughter was born with a full head of luxurious blonde locks with the same healing powers as the flower.

Wanting her flower back, Gothel steals into the castle and cuts a lock of the princess' hair... only for it to go brown, dead and useless. So she kidnaps the princess, hides her in a far-off tower, and raises her as her own. The king and queen mourn their lost daughter and begin a tradition of releasing flying lanterns into the night sky every year on their daughter's birthday, with the hope that one day she will return. The young Rapunzel never leaves the tower, but as her 18th birthday approaches, she grows increasingly eager to head outside, especially to see the "strange lights" that appear on her birthday each year. As it happens, a thief named Flynn Rider stumbles into their tower soon before her birthday. Holding his stolen loot hostage, she coerces him into taking her to the outside world, and their wild adventure to see the flying lanterns begins... with Mother Gothel hot on their trail, of course.

Example of:
Low Fantasy