For movies like this, the costumes are custome made.
From various shops on Diagon Alley or Hogsmeade. We are never shown other places for wizards to shop.
yes
Weasleys' Wizard Wheezes is introduced in Harry Potter and the Half-Blood Prince (Book 6).
twas malfoy
Half-Blood Prince
No, but in Orlando, Florida there are alot of shops in Universal Studios.
Honeydukes sells candy in Harry Potter.
Madam Malkins
They started with selling a few products in Harry Potter and the Order of the Phoenix, but the real shop started in Harry Potter and the Half-Blood Prince.
yes there is
yes
Yes hamilys in London sells wands and other Harry potter stuff! :)
The price range of a Harry Potter scarf on the official Harry Potter shop website is $15 to $30. Harry Potter scarves can also be bought from other websites like amazon or ebay for $5 to $40.
Weasleys' Wizard Wheezes is introduced in Harry Potter and the Half-Blood Prince (Book 6).
when they go into the joke shop....
at a music shop such as gould's .
twas malfoy
he's a girl and harry potter isn't real...but she got the idea in a coffee shop.