Finn on the Fly (2008)

Shy 13-year-old Ben Soledad is struggling to fit in at his new school—until a science experiment gone wrong transforms his loyal dog, Finn, into a human. As Ben teaches Finn how to navigate life on two legs, Finn helps Ben find confidence, friends, and a place to belong. But when the ambitious Dr. Madsen kidnaps Finn to protect her breakthrough discovery, Ben and his newfound “pack” must race to rescue him and secure the antidote before it’s too late.