In a speaker crossover, are film inductors directional or have polarity?

As a general rule of thumb, speaker x-overs don't have polarity. Are we speaking about active or passive x-over?

I think you mean film capacitors.  While they usually aren't directional, often it is seen as better to hook one end to positive.  they are usually marked by a long lead or a mark established by the OEM. 

Jerry

     As mentioned: you must be referring to film capacitors, as there are no film inductors.

    You’ll find your answer here:

https://audience-av.com/a_applications/

     There are FOIL inductors, to which you may be referring.     Their orientation makes no difference, far as noise or inductance value.

Thank you all... I was refering to foil Inductors, my mistake.

If you're referring to foil inductors, then they do not have polarity.  You can hook up either way it should be fine.