In this code, are the property values (title and director) supposed to be the same as the parameters?

Although you already have clearly mentioned "property value" I suspect you are referring to "property name" instead.
However, in either case, it's not mandatory to have same name or same value. It all depends on the function you are making and it's purpose. The parameter name is kept as same to avoid any confusion but that sometimes can create confusion and "this" keyword helps in identifying this.

So, the short answer is "NO".

Thanks :)