Stealing a march – or should that be swim – on next month’s 3D re-release of ‘Finding Nemo’, ‘Sammy’s Great Escape’ is a sweet and inoffensive computer animation with a gentle message about mankind’s plundering of underwater resources.

Sammy is a 50-year-old turtle who potters around the world’s oceans facing the hazards of global warming in a disappointing animated film – in 3D – that offers us absolutely nothing of interest, wit or invention.

We have had the sweet child from hell stories before, but in this latest version of a well-worked tale we have it with some style and a fine appreciation of decent character development and adult requirements.