|Is it that you are, in some manner, directing your conversation in my general direction?|
But as part of the the process of developing the characters or story or for creating that spark in specific scenes within that story, it does have a place in movies especially. Still a very small part in the bigger picture (no pun intended). Although it depends upon the director. Some use lots of it, some use none.
Here is a well done video from the Now You See It channel that talks about the use of improv in movies. There’s also a chance to see a clip of the very attractive and articulate Dave Morris (you should watch his TEDx talk in full, even if you have already done so a hundred times). Key and Peele are also a good choice to feature because they both come from the improv world. Actors who developed their acting and knowledge of comedy scenes as improvisers but now work in the (mostly) scripted world.
Watch the video and feel free to share any feelings below.