Comedy equals tragedy plus time, apparently. Not a particularly helpful definition when it comes to weighing up the relative merits of comedy films as diverse as Annie Hall, Airplane! and American Pie.
When it comes to cinematic comedy, what's your poison? Do you go in for the slapstick of Dumb & Dumber, the wit and quirk of The Royal Tenenbaums, the pitch black humour of Happiness, or are you one of the people who laughed at Freddy Got Fingered?
What, for you, is the funniest film ever made – and why? Let us know in the thread below.
We're also keen to hear about new films you've been watching. Here's what some @guardianfilm followers had to say about movies they'd seen recently:
T he Amazing Spiderman. Good reboot of Marvel franchise Garfield/Stone great chemistry 3D left a lot to be desired.
Storage 24- good fun and you don't have to have seen the previous 23 Storage films
Magic Mike straddles the pole tonally between grit & cheekiness, but drops the balls of story & character.
God Bless America is a one of a kind movie
Your Sister's Sister – loved the start but then it went a bit simplistic. Missed opportunity to explore complicated themes
Rock of Ages - like 80s porn without the money shot
• If you've seen any films in the last week, good or bad, let us know. You can either leave a comment in the thread below, or tweet your thoughts with the hashtag #gdnreview. We'll pick the best and show them off here once a week.
