The Sun-Times plays to its strengths, and one of them is packaging. The paper has turned its Friday movie coverage into a separate broadsheet section and ballyhooed it shamelessly. “Blockbuster New Section Starts Tomorrow” announced the front page June 21, and when the sun rose on the big day itself, the cover shouted, “Brilliant New Movie Section Starts Today.” The good news is that the Sun-Times would never dare boast like that if it couldn’t count on Roger Ebert to do some heavy lifting. Ebert transforms the Sun-Times whenever he’s in it, which due to ill health has been only occasionally in recent weeks and virtually never for months before. I hope Ebert doesn’t try to do too much. If he writes a story or two each week and presides over the section, making the other critics the Sun-Times has rounded up sound smarter by sheer propinquity, he’ll be doing as much as any one writer can to keep the ship afloat.