Akwat Kbrana said:
And don't forget the self-indulgent cameos in every movie- hell, even shyamalan himself told the main character in Signs how to defeat the aliens!
Why is this a problem? And why would it "ruin" his movies? Alfred Hitchcock gave himself cameos in most (or all?) of his movies. Does anyone think that that "ruined" them? Peter Jackson gave himself cameos in all three LOTR films. Does that detract from your enjoyment of them?
Seriously, dude, sometimes it seems like you're just looking for things to gripe about...
The thing with Hitchcock cameos is that they were short and unobtrusive- usually it was just Hitch walking across the street in the background. He didn't become a main character in his stories, as M Night did in Signs or Lady In The Water, for self-indulgent reasons. Peter Jackson's cameos in LOTR was the same as Hitchcock, they were more like Easter eggs than a full walk-on role. I have no problems with background cameos like that.
Having Shyalaman tell Gibson's character an implied weakness for the aliens (and the fact that his character in the movie accidentally ran over Gibson's wife in the movie) seems a little narcissistic to me, as if the director entered the movie himself and told the characters what to do. That kind of ruins suspension of disbelief for me IMO.