Seriously terrible...I can't even begin to outline the lameness, predictability and poor delivery of this attempt at humour.
There is a particularly American style of comedy attempted here, which fails by all measures to actually deliver on laughs.
There have been some fantastic parody films made over the years, I do enjoy the style of humour when it's done well...this is not one of those examples.
Parody it is, funny it is not.