The Village (2004)
Here's the thing: if you're going to put yourself in the film in a cameo role, it's gotta be unnoticeable. The second you pull focus, it's over. In The Village, Shyamalan is one of the rangers who is tasked with protecting the wildlife reserve in which the main cast lives. If he has any dialogue, I don't remember it. And I'm pretty sure he only appears in profile. Fine, I'll take it.