BA’s Magic of Flying billboard: How it was done

British Airways’ Magic of Flying digital billboard, which saw a child stand up and point when a BA plane flew overhead, has enjoyed a lucrative advertising awards season, capped off last week by the Direct Grand Prix at Cannes Lions. The ad’s charm lies in its portrayal of a simple truth: that planes look magical to children. But it took an awful lot of tech to bring such a simple idea to life: here’s how it was done…