Hundreds of the fans are decked out in Harry Potter gear, from wizard schooboys at Hogwarts...
Thousands of fans have been camping in London's Trafalgar Square, trying to get the best spot on the side of the red carpet to see their favourite Harry Potter stars.
And the fans have gone Pottermad for it. People have flown from all over the world to be there to say goodbye to their favourite characters.
Thursday sees the premiere of the last ever Harry Potter film, the Deathly Hallows Part 2.
...to Daily Prophet sellers!
One fan who'd made the two-day journey from Australia described this moment as "the end of an era".
But camping can be tiring, and it looks like these wizard fans have taken a break... they're still reading Potter books though!
It hasn't been the best weather for camping, and forecasters reckon Daniel Radcliffe, Emma Watson and Rupert Grint will most likely be squelching up the red carpet.
These fans don't seem to mind the rain - they've jumped right into the fountains in Trafalgar Square!
