Hmm... I'd like to have written a review about this, but I committed the sin of waiting a bit too long after having seen it. On the other hand, I only watched it a few days ago, so maybe the fact that I can't think of much to say reflects the quality of the film.
The premise was a good one - a whodunnit type of affair, with much scope for humour and tension in equal amounts. I do recall a few laugh-inducing moments. Not much recollection of any tension though. There were a few songs - none of which really stood out.
Shahid Kapur did okay, but he's no Shahrukh Khan. Akshay Kumar suited the role of the detective and had clearly spent a great deal of time in practising his eyebrow-raising. Kareena looked nice but that was about it.
If it had had a few more laughs and some decent songs I would've recommended it as a rainy-day movie (think Mr India), but alas, no!