In-character/game space Comedy is a powerful ingredient. To me it's like cayenne pepper and can either make the dish delicious, or render it nearly inedible. Anyone who has ever misread 1/8 teaspoon as 1/8 tablespoon knows this
. My theory is that there is a threshold for comedy, and there is a tipping point where the game becomes less serious overall because of the comedic elements. I think the first Guardians of the Galaxy was an example of where the comedy was really a good element and figured prominently in the story. It also made me take the dramatic moments a bit less seriously than other movies, as the cadence of jokes lets you know that serious scenes will be offset soon enough by a joke. Deadpool is even more so, threading the line of being a story where the serious scenes are just there to contrast the comedy.
Fine and good. Episode IV has a lot of humor in it, especially on the Death Star, where it could have been a very serious and dramatic and less fun.
But I also think that it is easy to go over the line with comedy and silliness to the point where the gravity of the serious side of things is being damaged. The Voice Mail joke by Poe as the Resistance faces destruction was a one two punch. The seriousness of the situation was diminished, and also Hux was further lampooned into being battle-droid-incompetent.
Do you find that in-character humor or slapstick situations tend to have the ability to act as a counter-force to serious drama? Do you care about the injection of a lot of humor? What about in serious scenes? If so, how do you manage the ratio of humor in the game as the GM?