For those of you who've been living under a rock (or those of you who haven't been anticipating the new Harry Potter film almost as much as the new book...) last night was the premiere of Harry Potter & The Goblet Of Fire. As you'd expect, as the kids have grown older they've also grown a lot more stylish (well, some of them), so what better way to celebrate Potter mania than with some ridiculous fashion critique and 'get the look' info from the premiere? You'd never guess I was in my twenties, would you?

First of all, the Catwalk Queen 'dress of the night' award goes to Katie Leung, the lucky girl who gets to play Cho Chang, Harry's first crush. She wowed the crowds in a beautiful Matthew Williamson number.

You can get the exact dress for £795 at Net a Porter. If you don't have a Warner Brothers salary (or the ability to get things for free because you're in a Potter film), the Miss Selfridge number I mentioned last week is a great alternative.

Emma Watson aka Hermione Granger wore two dresses during the course of the evening. The first was a simple black spaghetti strap number that loked fabulous. Try the black 'Gothic' dress shown above (£39.99 from River Island) to get the look for less, or Monsoon's silk 'Sian' dress (£160) for an even more authentic look. Her second dress was a slightly bridesmaid-ish white slip with an embroidered chiffon layer. Clemence Poesy (the gorgeous girl who's playing the beautiful foreign student Fleur Delacour) also went for whispy white chiffon and looked much better. Imitate her look with a vintage-look cape or shrug over a plain dress (much cheaper than buying a whole new dress). The ones shown are £40 from Star by Julien Macdonald at Debenhams and £50 from Warehouse.

The boys seemed have decided en masse that velvet was the way to go. Dan re-lived his early days starring in David Copperfield with a green velvet tailcoat which had one of my friends asking why he was dressed like an inhabitant of the Emerald City. A gamble, yes. A success? Perhaps not. Rupert also went for velvet and got off slightly better by teaming his blue tuxedo style jacket with scruffy jeans. He's so rock and roll, you know! Another velvet fan was Robert Pattinson, also known as 'the new Potter stud'. He plays Cedric Diggory, the Hogwarts golden boy. The best place to get retro velvet jackets for you or the boyf is Camden market in London, but if you want to shop online, the Penguin 'After All' stretch velvet jacket (£99 at A Girls World) is very Cedric-esque, and River Island's £49.99 velvet 'tails jacket' is a must for die-hard (and brave) female Potter fans.

Seen someone else at the Potter premiere (or elsewhere) whose outfit you'd like to copy? Let me know!