Hi jno, I was looking at Calatrava who was the architect for L'Hemisferic in Valencia which includes a cinema and planetarium but I couldn't find a picture. I think I will go with this.
Hi jno, have now managed to find a picture of L'Hemisferic in Valencia showing part of image shown in the Telegraph. Many thanks for your help in confirming my thoughts that it was Valencia.
But the question, I think, was something like 'what is the name of the 'city'?' In other words, i don't think Valencia is the answer; look for the 'city' within the city!