Should a call to action be indirect or direct?

Carl Eneroth asked: Regarding purpose I want the audience in other companies in this multinational to be inspired to take action that intensifies their diversity work (feel and do). I guess this purpose, or any purpose, is not something that will be said in the film, but will indirectly be a call to action as a result of illustrating/showing the key words?

If you've told a strong story, then it's completely up to you as the storyteller to decide how direct, or indirect, you want to be with a call-to-action. So while you should feel empowered to directly ask the viewer to do something in the end if you'd like, you should also feel confident in your ability to guide the heart to move the mind. That your viewer will be moved to action regardless.