What you can do is set that label's
bottom to the director's name label also set the
greater than equal to (>=) constraints for your label height, So it will looks like this.
Now set the constrains for the director's name label to
greater than equal to (>=). Now also set the Director heading label top to this director's name label. So you are having constrains for this label like this.
Now simply select the Director heading label and set the fixed width height leading and trailing, Don't forgot to set its top to Director's name label. So the final result give you like this.
Note: Don't forgot to set
0 for both of your cast name label and director name label.