I am not offering any legal advice on the topic; however ...
There is fair use
https://books.google.com/books?id=-Y...%20use&f=false
Trademark infringement with the intent of financial gain is an unlawful civil tort usually.
If an actor drives a Ford to a movie scene you film you are not infringing. If you use a likeness of the Ford logo that says PORN instead of FORD I would expect you to get a C&D letter as soon as they saw it and further legal action if you did not stop using that logo immediately.