Mrs Eldon wants Dan to play her son,Dan Eldon..

http://thedestinationisthejourney.blogspot.com/search/label/Daniel%20Radcliffe

"Eldon's mother Kathy told the Observer she'd met and turned down several other stars eager to play her son, but Radcliffe fits the bill perfectly because of the many parallels between the two - not least a global outlook, magic and poetry."