The genre is well-worn, but smart writing and sterling supporting players (Rob Brydon, Tamsin Greig, Alice Lowe) inject it with heartfelt originality.

The film could do with more urgent pacing and structure, but it's meant to be minimal -- not much more than an acutely observed, achingly accurate slice of modern life.

It is about small moments, tenderly observed, and it gives full attention and understanding to all of the characters, even the one whose behavior is most inexcusable.

Tender British comedy about a mismatched mother and son.