body: I submitted a conference talk based in a movie, with the title being a spin-off of the movie title (applied to a technical domain). I have since discovered that there is already a talk form last year with a very similar title, but even though there is this similarity my abstract and the other author's are completely different (and the topics are not quite the same, even though the domain is similar).
  
  
  In result of this I got a cease and desist letter from a lawyer over copyright infringement that seems a bit preposterous. Could an accusation like this have any legal grounds?
  
  
  
title: Is a cease and desist because of a conference talk valid?