There's a reason they're called...
Cliches.
Because they work. All of the things Dpat mentions above have made millions of dollars for movie studios.
The real trick is trying to figure out which cliches will sell at what time. Several execs in LA get paid big bucks to figure this out.
As a writer, cliches provide us with ideas -- how can we "change up" a cliche? Make it our own. I would say cliches are good, especially when you can alter them a bit to make a new, and maybe more interesting, cliche.
Think about it. Shane Black is often credited with creating the modern "buddy cop" flick. Not a bad cliche to start. Look how many of these movies have been made since. Heck, "Seven" takes the buddy cop flick and throws it into a suspense/horror. So many films are just extensions or "tweaks" of well known cliches.
Using cliches, combining cliches, twisting cliches -- do one of those, and you have just about every movie Hollywood puts out these days. Why? Because the big studios care about one thing -- making money. Which is why all the edgy, new ideas are almost exclusively relegated to independent film.
So attend some film festivals and support all these exciting film makers who try to go in new directions. All the new cliches will come from those willing to take chances.
R