RHPS & Clue are the first 2 images that come to mind.
3 Musketeers comes next.

"It" has been mentioned, and brings a clear image to mind, but I wouldn't have thought of it on my own.

I watched Hunt for Red October dozens of times, and barely remember him in that.

@RHPS: 2 times in my life, at 2 different colleges, I made friends with a group of theater majors who later decided to put on RHPS, as the actors in the front of the theater. Another time, my roommate decided to actually hold casting for the roles and put on a fairly major event, considering the niche audience.
True story: The 3rd one lasted for 3 showings, until they got kicked out of the theater for patrons of RHPS performing oral sex in the theater lobby. Sad, really, 'cause if they went into the theater, they could've done it on stage and it would've been fine.