I have a parameter "title" that may or may not be defined. If the parameter is defined I want to match nodes that has that parameter as a property.

```
MATCH (movie:Movie {title: {title}})

```

If the parameter is not defined, I don't want to match by that property and instead just return all movies. I.e. I want to filter the results by the parameter if it is present. Is this possible in one query?