Here is the most glaring example from the Armies of the Night module we discussed before.
Personally I cannot imagine a movie production house (nor Schwarzenegger for that matter) giving permission to use an image from a poster for a movie released in the same year the module was published. It was probably just a less litigious time. A lot has changed in the past 25 years.
edit (from 1980 to today the number of Lawyers in the US has increased from ~400,000 to ~1,200,000)