Sequels aren't always a good idea, especially when the original was a surprisingly fun, colourful, cheesy good time.
But when most of the superb original cast sign up to come back it would be silly not to take a chance on them.
It's been 10 years since Mamma Mia! had us leaving cinemas with smiles on our faces and a best-of-Abba album stuck in our heads.
Once a decade for this franchise feels about right - anyone who loved the original will be ready for more of the same.
And though there is more of the same - the same Greek island location and a flimsy story about mothers and daughters and their lovers, interrupted by joyous musical numbers - the new face behind this sequel, writer and director Ol Parker, knew he had to deliver something extra, and he does. It lands in the form of emotional depth.