Thank you for posting the trailer. It actually looks very cool!
And very Gilliam-esque.
But my heart truly did seize up a little when Johnny Depp in Heath's character's get-up declares there at the end; -
"nothing's permanent, not even death!" It's a strangely tragi-ironic comment to the reason why Depp is in the film at all. Which Gilliam knows all to well, of course - that has to be why it's included as the trailer's spoken punchline.
I don't think that's particularly classy, actually - seems to me almost as if Gilliam is using Heath's passing to structure the marketing around...