The nonsensical title spelling is the worst part of “Expend4bles.” A 4 does not look like an A, the letter A has never looked like the number 4. Besides that, the script is actually very good, and the acting is more than serviceable, but it is the directing that is an absolute failure. Like most studio blockbusters outside the Marvel incubator, there is a litany of writers listed in the credits for the movie. The team crafted layered lines, focu…