First of all, this movie is not a pornographic film. I have no idea why people refer to it as such. That aside, I think it was a decently lighthearted flick that was fun to watch. It wasn't really funny as per my tastes but I understand the style of humor it tries to pull off; a typical 70s family themed comedy.
The plot revolves around three greedy siblings who compete amongst themselves in an effort to inherit their parents' "wealth". The comedy revolves around the family and the various characters they interact with. And if you're looking for Jackie Chan (which was why I watched it), he isn't in it until at least an hour into the movie. And his little role is out of all the most charming. Yea, he's involved in a softcore sex scene, but there's nothing of any substance or controversy there as people make it out to be.
I had a nice time watching it.