Well, exactly the title is "The Personal History of David Copperfield", but it should be clear what is meant.
There's no author who wrote more novels deserving of the seal "masterpiece" than Charles Dickens. Of all of them "David Copperfield" is the one I'd rank right at the top of his ouevre and I'm far from being the only one. Since the 1935 version which was a fine film there was no new try to adapt this for the screen, while there have been countless and somtimes senseless movies been made out of A Christmas Carol. Partly this is because the immense volume of "David Copperfield", which makes it also very hard to adapt it.
However this being one of my favourite novels ever I'm extremely curious and eagerly anticipating the new try, while at the same time anxious if it will do justice to the book. I think Armando Iannucci, who himself is not a poor writer, will certainly do the best to bring Dickens' ingenious dialogues to the screen, his understanding of irony should cope very well with Dickens. I am a bit more skeptical if he will be capable off bringing also to life the unique panopticon of characters and manners that this novel is, connected with the atmosphere of victorian England. Of course Iannucci won't have the chance to get as deep into the characters and the details of the story as Dickens did, but I hope he will get under their skin well enough.
I'm not too excited about Dev Patel as David Copperfield. I liked him a lot in "Lion", but don't envision him in that role. However Ben Whishaw as Uriah Heep could turn out great.