[dlwiest]

I actually started developing this but shelved it because I couldn't figure out how to pitch it.

"So what's this app you're building do?" "Well... have you ever had that problem where you know you recognize an actor from another movie, but you don't know his name, and you don't feel like cross checking the movies' IMDB pages?" "No." "Oh. Okay."

[knd775]

You could just try to pitch it as a movie finder. It could be setup like WebMD, where you select a few symptoms and it determines what a possible diagnosis may be. You could select a few actors, the genre and maybe the time period. I actually really like this idea now ;)

[dlwiest]

True. I may pick it up again. I'll just need to figure out how to make it robust as I'd want without it becoming too clunky.

[miyou]

Just found this: www.imdb.com/search/common Does pretty much exactly that