This isn't scientific or anything, and evidence still needs to gathered to turn this theory into a fact, but as Russell Brand's hair has become far less wild and as he's settled into a domestic life with his improbably wife Katy Perry, the man has gotten distinctly less funny. The witty, energetic comedian fell hard into the man-child stereotype with "Arthur," a movie that bizarrely took him away from the exact style of comedy that him noteworthy.