If you think Ebert only wrote starred reviews and had TV shows, then you are very wrong, and you have missed out. That's what he is most known for, but his extensive writings and lectures on film go as deep as anyone else in the field.
"As deep as anyone else in the field" implies formal writing, which I've never seen by Ebert. If it exists, does it compare with what gets published in a film studies journal, or has it been published in one? Do you have a link or article name?
