Where is the programme filmed?
Waterloo Road School is actually a recently-closed school in Rochdale. Formerly Thornham Middle School, and later Hill Top Primary School. The latter closed in 2005, with the school being used as the setting for the drama from that summer.
As of 2012 filming moved to Greenock, Scotland taking over the former Greenock Academy school building.
Where did Brett and Mika go after Series 3?
Tom confirms in 4x12 that Mika went to University after graduating form Waterloo Road at the end of series 3. The official website says that Brett went with her.
What was the name of that song?
All songs and music used in Waterloo Road is listed on the songs page of the official website. Visit www.waterlooroad.co.uk and take a look at any of the episode outlines, where song lists are provided.