How to serialize an object to/from xml

I copied the below almost entirely from this page but didn't want to risk it going away before I had it committed to memory, so read that page not mine! I am not sure why you just wouldn't create a method on the object to do that but all the examples I have seen use a separate void class.
[csharp]

//Serialize:
static public void SerializeToXML(Movie movie)
{
  XmlSerializer serializer = new XmlSerializer(typeof(Movie));
  TextWriter textWriter = new StreamWriter(@"C:\movie.xml");
  serializer.Serialize(textWriter, movie);
  textWriter.Close();
}

//Deserialize:
static List<Movie> DeserializeFromXML()
{
   XmlSerializer deserializer = 
      new XmlSerializer(typeof(List<Movie>));
   TextReader textReader = new StreamReader(@"C:\movie.xml");
   List<Movie> movies; 
   movies = (List<Movie>)deserializer.Deserialize(textReader);
   textReader.Close();

   return movies;
}