However , unlike Ronson , Wilton was an American from Ann Arbor .
According to Ronson 's DVD - commentary , the journalist - character Bob Wilton ( Ewan McGregor ) did experience some elements of Ronson 's self - recounted story from the book .
Unlike Ronson , Wilton was an American from Ann Arbor .
According to Ronson 's DVD - commentary , the journalist - character Bob Wilton ( Ewan McGregor ) did experience some elements of Ronson 's self - recounted story from the book .