When I sit down to write a scene I often find it only comes to life as I am writing it. Characters start speaking, they react, they sit and stand. They take off hats, and wipe their faces etc. But then another thing happens - the scene gets burned into my brain. It becomes real - so real, that I have trouble deciding if I have seen it somewhere in a movie before. Its just so real its breathing on its own, so I cant help but think it has been done before. I find I have to search the net for any reference of anything similar before I let the scene continue. Does this happen to any of you ?