A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."

By the time the dramatic fireworks start popping off, each one feels earned.

The joyful confection is coated in a sparkly gloss, bright enough to gleam from the darkest, most cynical corners.

This is a small, humorous movie in some ways, but it has a huge heart. What a nice experience.