OK so here's what happens. Mother (Ellen Burstyn) is in a store and sits down on a couch and refuses to move. Her 3 children Gruffud (Rhys Ifans), David (Ewan McGregor) and Linda (Lara Flynn Boyle) all meet up at the store to chat to their mother. They are perturbed at her not telling them why she won't move from the couch. There's lots of chat, but it is inane and banal chat which doesn't mean anything and doesn't tell us anything except all 3 of them seem slightly inept at life. This continues, until the end of the film. There are no redeeming factors. Ewan McGregor is his usual low grade self, quite how he gets jobs I have no idea. The dialogue is awful, there's no explanation of development of any characters, it really is appalling.
There does not seem to be a coherent story here, the score appears to match that of a farcical comedy, the acting is well below par except for Ellen Burstyn, and the dialogue is confusing and irritating in it's banal nonsensical way.
I honestly can't tell you what it's about because it doesn't seem to be about anything. I gave it a 2 and that's solely for Ellen Burstyn's part in it.