I'm sure this is a good film for the right audience -- by that I mean people who liked the set-piece bitchiness of Gosford Park, the long-playing social relationships of Downton Abbey, the humour of old folk forgetting things, or the nostalgia of opera. For such folk, my comments below can be safely ignored. But if you don't like any of the above, you may find (as I did) that the senility was over-acted for supposedly comic effect; the emphasis on characters over plot made the film drag; and some of the plot ideas were telegraphed so far in advance, they could have used pigeon post and it would still have arrived in time. I can't even tell you if it had a happy ending as I didn't make it to the end of the film, though it looked like most of the tensions were going to be reconciled while one key character suffered an emotion-jerking exit.
If you want a film where old people are not either incredibly wise or suffering from comic levels of senility, I recommend The Bucket List.
If you want a film where old people are not either incredibly wise or suffering from comic levels of senility, I recommend The Bucket List.