Actor James Norton, who stars in a new film telling the story of the world’s first “test-tube baby”, has criticised how “prohibitively expensive” IVF can be in the UK.

In Joy, the star portrays the real-life scientist Bob Edwards, who – along with obstetrician Patrick Steptoe and embryologist Jean Purdy – spent a decade tirelessly working on medical ways to help infertility.

The film charts the 10 years leading up to the birth of Louise Joy Brown, who was dubbed the world’s…