The third instalment in the saga of the boy wizard involves a head-spinning denouement in which Harry and Hermione use a magical device known as a “time-turner” to go back in time and help Gary Oldman’s Sirius Black to make his escape. Okay, so they only venture a few hours into the past, but it still counts as time travel!
With Added Doc Brown:
The Doc’s souped-up car appears relatively old hat to our young leads (after all, they’ve already seen one that can fly), but his driving skills still come in handy as he sends the treacherous Pettigrew careering over his bonnet, preventing his escape.
Risk To The Space/Time Continuum:
By stopping Pettigrew’s getaway, Brown throws J.K. Rowling’s continuity out of whack, meaning that the final battle ends with…well, we don’t want to spoil it for you, do we?