A lot has changed since then - most notably the child stars which the movie franchise made famous.
Now - after the internet was astonished to see what Harry Potter's Neville Longbottom looks like now - Digital Spy has donned our sorting hat to see what the now-muggles look like today...
1. Harry Melling as Dudley Dursley
Post-Potter, Harry Melling has had parts in Merlin, Just William and Garrow's Law. Last year, he also performed a one-man play in New York called peddling and starred opposite Scarlett Johnson, Patsy Ferran and Felix Scott in The Angry Brigade.
2. Matthew Lewis as Neville Longbottom
We nearly lost our Snitch when we saw the transformation Matthew Lewis has had since his days as Neville Longbottom. He's gained a beard, good looks and also a role in BBC Three comedy Bluestone 42.