“Ferris Bueller’s Day Off” in just six days. The joke at the time was, imagine how good it would have been had he spent seven. Released 35 years ago Friday, the ’80s flick follows a charismatic troublemaker (Matthew Broderick) who cajoles his mopey friend, Cameron (Alan Ruck), into skipping school and having a jam-packed day of fun in Chicago. The irresistible comedy, which Hughes also directed, didn’t exactly set box office records.