In the book Harry Potter and the Chamber of Secrets we are first introduced to Colin Creevey, an excitable, faintly annoying fan of Harry Potter:
'All right, Harry? I'm - I'm Colin Creevey,' he said breathlessly, taking a tentative step forward. 'I'm in Gryffindor, too. D'you think - would it be all right if - can I have a picture?' he said, raising the camera hopefully.
Harry Potter and the Chamber of Secrets - p.75 - Bloomsbury - Chapter 6, Gilderoy Lockhart
And on and on he goes, I think we all know who I'm talking about here. Throughout the series Colin is a minor presence who gets on Harry's nerves somewhat:
'Harry! Harry! Hi, Harry!'
It was Colin Creevey, a second-year who was deeply in awe of Harry and never missed an opportunity to speak to him.
'Aren't you going to Hogsmeade, Harry? Why not? Hey -' Colin looked eagerly around at his friends, 'you can come and sit with us, if you like, Harry!'
'Er - no, thanks, Colin,' said Harry, who wasn't in the mood to have a lot of people staring avidly at the scar on his forehead.
Harry Potter and the Prisoner of Azkaban - p.115 - Bloomsbury - Chapter 8, Flight of the Fat Lady
He is also a member of Dumbledore's Army:
... the Creevey brothers were enthusiastic but erratic and mainly responsible for all the books leaping off the shelves around them ...
Harry Potter and the Order of the Phoenix - p.349 - Bloomsbury - Chapter 18, Dumbledore's Army
In the film version of Harry Potter and the Chamber of Secrets the character of Colin Creevey does appear:
Colin: Hi Harry! I'm Colin Creevey, I'm in Gryffindor, too.
Harry: Hi Colin, nice to meet you.
Harry Potter and the Chamber of Secrets, film.
And he goes on to get petrified by the Basilisk and all that jazz. He is, then, never heard of again. Instead, we get a remarkably similar Nigel character:
Nigel: Parcel for you, Mr Weasley.
Ron: Ah, thank you, Nigel.
Nigel hands Ron the parcel and then hangs around awkwardly. Hermione looks at him enquiringly and gives a small cough.
Ron: Not now, Nigel. Later. Go on.
Nigel leaves, disappointed.
Ron: I told him I'd get him Harry's autograph.
Harry Potter and the Goblet of Fire, film.
This character goes on to become a member of Dumbledore's Army and everything:
Harry: So, um - come on then, Nigel. Give it your best shot.
Harry Potter and the Order of the Phoenix, film.
The film version of Colin Creevey and this Nigel even look and sound fairly similar.
Nigel is, however, certainly not in the books. So ... what's going on here. Why the change?