Fix results when searching by movie

When searching for movies by :title, we should return an array unless the user
specifies a :limit of 1. The previous spec just happened to test a query that
had more than one result ("Fight Club").

Test Plan:

```
rspec spec
```

#### NOTE:
imho, I think the API should always return an array when searching by `:title`. Seems weird that the result type is different when a special `:limit` is set.