fawlty towers,my name is earl,family guy.
love actually (mixture of comedy and seriousness)
borat
dodgeball
anchorman
little miss sunshine (my favorite!)
meet the fackers
superbad
knocked up
juno
Hm now this depends if you like old school or not.
If you want to watch then i would suggest some Leslie Nielsen movies, they are funny as hell in there old school way.
Another personal favorite is Euro Trip dunno how many times i've seen it but it still makes me laugh. Harold & Kummar is also worth watching and the second episode will be out soon (or it is already)
if ur into teen comedies then watching something from the american pie series or eurotrip
Airplane
Enchanted
Amarcord
Babe
Fargo
Ghost Buster
Hayno
The kid brother
The ladies man
Manhattan
le million
Four Weddings and a funeral
Good Luck Chuck
Ariel
Beat the devil
Big
Grease
Gigi
High society
Trainspotting
Trust
Swing Time
When harry met sally
up in smoke
Tootsie
Top hat
Trouble in paradise
toy story
network
mr deeds goes to town
Duck Soup
Some Like It Hot
Monty Python and the Holy Grail
Young Frankenstein
Bringing Up Baby
Arthur
Bananas
Take The Money And Run
Modern Times
A Shot In The Dark
No Time For Sergeants
Adam's Rib
It's a Mad, Mad, Mad, Mad World
M*A*S*H
Lost In America
National Lampoon's Vacation
The Pink Panther
A Day At The Racess)
Caddyshack
The Court Jester
Sullivan's Travels
. Road To Morocco
This Is Spinal Tap
The Heavenly Kings
some are old, some are new I hope you ill like them
voted funniest move of all time was Animal House. NOt much talked of is Nothing to Loose