I saw this at the Edinburgh Film Festival last night. I'm not a natural fan of Loach's work, although grew a little warmer to it after Sweet Sixteen.
What he's made here though is a believable, warming love-story. Aside from 'location-spotting' the Glasgow geography, there was a feeling throughout the film that's difficult to pin down (or articulate!); just a kind of "yeah, that's right, these people and these feelings are real".
Lead-wise, a great line up, Atta Yaqub plays a quiet Casim, and Eva Birthistle a brilliant but natural Roisin - there's nothing that stops you believing that this is a couple in love.
As for the rest of them - some excellent characters and some good acting. One criticism is Loach's practice of using non-actors - sometimes this leads to an almost TOO natural delivery of the script. The strength of the whole cast comes through though, and there's certainly no feeling of any tokenism or stereotype characters.
One actor who doesn't appear to have had much notice in any write-ups I've seen is Shabana Bakhsh, who plays Tahara Khan, Casim's youngest sister. She's fantastic. Again, falls a little foul of sometimes sounding overly natural... but what a star though. She was very believable as the rebellious, starting to get politically active, younger sister.
All-in-all, a great film, worth seeing. I think it's out on general release sometime in the early autumn - well worth the ticket.