Ashlee Rezin/Sun-Times
When HBO airs the premier of “Hard Knocks” with the Bears on Tuesday, roughly 400 hours of footage from practice, meetings and off-field activity will have gone into a sharply produced one-hour episode.
NFL Films’ crew of about 35 has been all over Halas Hall during training camp and has found the Bears to be a receptive and cooperative partner — which could surprise some given how hard they fought against being included over the past two decades. Since their initial meetings in the offseason, the team has warmed to the idea.