A few punches are thrown, some threats are verbally stated and a man falls off a cliff at the end (not telling us wether he is in fact dead or not)
A man also trys to commit suicide, another man tries to stop him and one of the groomsmen is shot in the arm. Not graphic or disturbing, more comedic.
One of the groomsmen is very depressed and talks of how he wants to die.
A man gets slapped a couple of times to snap out of his depression, he then cries and said "That really hurt." This is all played for laughs though.
During the wedding a man who is sleeping in the car accidently shifts the car into gear. The car knocks a ball of hedge, the hedge goes flying down a hill and knocks a few people over.
An aggresive drug dealer crashes the wedding and is seen a few times pointing a shotgun at the characters. He shoots the wedding cake.
A character sees another character with the drug dealer. He smashes a vase over the dealer's head. The character is revealed to be having a bath with the dealer by his side, and that he sorted everything out until he came in. They are forced to lock the dealer in the sauna.