Bestiality comes into its own (but thankfully both tastefully and figuratively) in the black comedy Sleeping Dogs in which a young couple Amy (Melinda Page Hamilton) and fiancé John (Bryce Johnson) make the cardinal mistake of playing the pillow talk game of divulging the grossest things they've ever done in their lives for their own amusement.

John tells Amy a secret (not that earth-shattering), so Amy thinks she can trust John not to fly off the rails when she tells him about her worst one which involves a certain encounter with a pooch, but sadly the prudish John acts like a spoilt brat, leading Amy to ask herself fundamental questions of whether she's with the right guy or not.

Whilst the film might initially seems like a one-joke film dragged out to feature length, it's actually more than that. It's really a sweet black romantic comedy that allows you to question what would you do if your loved one confessed to something darkly weird in their past, how would you react, and so on.

The correct response is to figure that that was then, and this is now, and to be pleased your loved one confessed and felt brave enough to, but trying telling that to John, who clearly hasn't left first base when it comes to handling relationships.

Director Bobcat Goldthwaite has come up with a decent comedy, quite funny at times, a kind of 'Bridget Jones with bestiality', and strangely although it thrives on the knowledge of a particular secret, it's actually a film which is better seen a second time because you begin to see nuances you might miss the first time.

Begins well, ends ok, dips just slightly in the middle, and will leave you thinking that ok, perhaps some secrets are truly best left unsaid, although it also suggests that if you're with the right person, you ought to be able to tell them perhaps almost anything.