There’s some very clever editing going on in the trailer to “District 13: Ultimatum,” the new French action film and sequel to 2004’s “District 13.” Namely, there’s not a single word of dialogue uttered. Thus, the trailer will appeal to people who love watching explosions but have a natural aversion to hearing any language other than English between those explosions. What about the actual film? Well, it looks like it’s just a giant ad for parkour, the new-wave extreme sport of running really fast and jumping off tall buildings. Looks pretty cool, if your ears can take all that French.