No, there isn't any football footage in the clip.
On their website, Explosions in the Sky graciously announce the debut of the video for the track "Last Known Surroundings" from their latest release, Take Care, Take Care, Take Care. This is the band's first official video, and it is embedded below. And just so PopMatters can preempt any snark, no, there isn't any football footage in the clip. That joke isn't funny anymore, anyway.