"We were going to play two dads, which would have really been hard to pull off because of the creep factor," Galifianakis said in a recent joint interview with Ferrell.
"I have learned as a stand-up it's much better for acting to go the way of someone that has improv training and pay attention to that," says Galifianakis. "It is much better if it's a group effort. I always say less is more, for me. I don't need to say a lot of things. I don't want to say a lot of things. (in a whisper) I don't want to work."