Starring: Rihanna, James Corden, Nick Offerman, JP Karliak, Daniel Levy, Amy Sedaris, Natasha Lyonne, Sandra Oh, Jimmy Kimmel, John Goodman. Cert U, 92 minutes. ‘Smurfs’ is in cinemas from 18 July ...

Well, now they’re being voiced by James Corden and Rihanna with all the energy of an automatic voicemail message. And, as “Smurfs” is also a musical, they sing, too.

The woodland creatures get a new voice cast — including Rihanna and James Corden — and an updated backstory, but can't escape the mania and tedium of chockablock execution.