Should they do another one?

I saw the film with somebody who has seen them live. She said it signally failed to capture the live experience. I had to agree as the film made me want to see them live because the film really didn't work for me. As for another one, I wouldn't want to watch it.

I've seen a few of their shows live,none of which were featured in the movie (Varekai, Dralion, and Totem) and I was amazed by this movie.
Its a great experience for those who cannot see these shows for fiscal or geographic reasons.
It does not compare to the live shows, for sure you aren't getting the whole story and some of the scenes seem disjointed in the film it's true. By watching the movie as something separate to watching a live circus you can see what they were trying to achieve. They're both very different things.
And there are people like me who will always watch these movies. :)

ADS is the only circus I support as they don't use animals.