I think that this would require a major overhaul in how the adding titles window works.

But I think it would be a good feature to have so that one could search for a certain person and don't know the title of the film/tv series one could do a search and a list of all profiles with that person in it would be the only ones listed in the window.

Right now the only way to add titles is either by the UPC# or the title. And to do it by title one has to have open a site with a filmography.