I don't think there's ever been a moment in history where that, as an artistic message, has played very well, because people in their hearts know that's terrible and a lie.
The easiest time to be funny is during a fairly serious situation. That way, you can break the ice. It's crazy, but even at funerals, people will get huge laughs.
When you screen it the first couple times, you're just trying to get the movie to work, trying to get the story to flow, trying to find out where your areas are where you have enough breath to laugh a little bit. So you're doing that the first two or three screenings, and then finally, you dial the movie in and it's working, and at that point, it's 50/50 as far as what's funny and what's working. Sometimes you'll put something in and it will just die so hard that it'll almost kill the movie.