Tyler Perry's Madea's Witness Protection

On each of my trips to the USA I have seen a film which will not reach Aussie cinemas and instead go straight to DVD/Blu-ray. This is one such film.
Tyler Perry is not a name that would be familiar in Australia. However he is one of the most popular film makers in the USA. Over the past few years he has built up a successful career with many films and television series. Most of them feature the character Madea, an outspoken woman who is played by Tyler. His films are aimed mostly at an African American audience which is why his films have not had a cinematic release in Australia. 
Madea is a rather cleverly realised comedic character. She is like an African American version of Dame Edna. Tyler has created a film that lets the culture of Madea clash with that of a wealthy white family. This situation does provide many funny comedic moments and the film is pleasantly amusing. I got a few giggles out of it but no huge laughs. The jokes are not terribly clever and mostly derive from Madea's outrage at how obnoxious the white children are. But I think anyone regardless of race would react in the way Madea does. There is a bit of racial humour with an older woman with Alzheimer's, which could be considered offensive but because Tyler is African American he can get away with it. The plot is quite predicable and feels very long as well. I think it could have lost about 15-20 minutes.
Tyler Perry is a very skilled comedic performers. He not only plays Madea but also plays Madea's brother George and her nephew. As Madea he is brilliant and I am quite impressed. There are some very clever improvised out-takes over the end credits. Eugene Levy is decent as the business man forced to move in with Madea. He leaves most of the really funny stuff to Tyler. Denise Richards is serviceable as the wife. Not sure why her character is supposed to be so young. Doris Roberts is good as the elderly mother but as mentioned above the constant use of Alzheimers as a comedic device was uncomfortable. 
If you get the chance you should check out one of Tyler Perry's films featuring Madea. A very well realised comedic character. This may not be the best outlet for that greatness but is still an entertaining film.