Speaking to Den of Geek, the episode’s director, Lawrence Gough, revealed a touching bar scene that was left on the cutting room floor.
“There was a whole sequence in the bar scene, where Heather and Bill first meet, and we spin around them,” he told the publication.
Gough revealed that the Doctor was playing a heavy-metal-inspired version of Clara’s Theme on guitar.
Doctor Who kickstarted its tenth series with a well-paced episode that basically soft-rebooted the series, establishing two new partners for the Doctor and bringing the scare factor back.