Favorite Movies : Need help with a tiny scripts

[eluser]IamPrototype[/eluser]
So the input value would look like this: "In Hell, Simpsons, South Park". But if the user enters a comma without writing a movie like this: "In Hell, Simpsons, South Park, " it would insert a blank movie or cause an error?

PS: I just thought that putting the movies into a single line would be a lot better.. but now I realize if I would do some statistics on how many users like "South Park" it would be a lot easier to do it the way you're doing it, thanks.