Geek girl Elle Wittimer never expected to meet the heartthrob star slated to play Federation Prince Carmindor in the reboot of her favorite sci-fi series. Teen actor Darien Freeman never expected to meet a girl who loves Starfield as much as he does—let alone a girl who doesn’t think he’s going to screw up an iconic character. But throw in a beautiful cosplay gown, a food truck called the Magic Pumpkin, and a missing slipper, and anything can happen once upon a con…