They're currently filming the new JK Rowling movie very near to where I work. 
Harry Potter prequel Fantastic Beasts to film in Liv...
Harry Potter prequel Fantastic Beasts to film in Liv... 
The Birkenhead Tunnel was used in Harry Potter And The Deathly Hallows I. Yes-ah
dragon_harrower
says
ooooh!
Do they need extras?
Lemongrass
says
fun! And nice to hear from you.
www.plurk.com/mimipal There definitely are extras. I've seen some of them walking down Lime Street in 1920s costume.