One of the constant criticisms of the DC Extended Universe thus far has been its dark and joyless nature. While no one is expecting the films to have the same type or amount of comedy that you'd find in Marvel, there is definitely a case for more levity in the films.
That is something WB/DC have been clearly trying to address moving forwards, and has been evident in the Justice League trailers. Wonder Woman is here first, though, and by the sounds of things it's an absolute hoot.
We've seen a fair bit of comedy in the trailers come from Pine's Steve Trevor and Diana's fish-out-of-water nature, and it sounds like we can expect plenty of humour in the movie, with the majority of reactions pointing out how funny the thing is.