In this decade of sequels I got to thinking of movies that are safe from being continued in a sequel. I decided on the following ten movies that there will never be a sequel to. Although, I wouldn't be surprised if they found a way to.

Pootie Tang 2
In the sequel the government has reason to believe that Pootie is in immigrant, due to his speech, and is forced to take English classes
Gigli 2
The sequel will actually be a self help video for people thinking about suicide to show that their life isn't that bad
Deep Impact 2
The sequel could either take place after the impact and be identical to The Day After Tomorrow or take place before anybody know the "impact" was coming and would just be two meteorologists waiting for something to happen talking about Armageddon
Saving Private Ryan 2
That Ryan character can't just stay out of trouble
Just One of the Guys 2
In the sequel her brother will dress up like a girl
In the Army Now 2
Who in Hollywood would say no to another movie starring Pauly Shore AND Andy Dick?
Surf Ninjas 2
There could actually be a sequel to Surf Ninjas but it will never happen because you're probably asking right now, Surf Ninjas?
Forest Gump 2
What else could he possibly do?
The Breakfast Club 2
After they're all threatened with expulsion they serve their detention time and go home...nothing happens
Cast Away 2
If Tom Hanks is stupid enough to get on another plane and unlucky enough to get stranded on an island again, he would most likely kill himself.

Got some more? Let me know.