Okay, I'm going to speak here as someone who hasn't seen the movie, and who admittedly has been concerned about the state of the toy line for several years now.
There's a degree to which Hasbro can pretty much do what it wants with G.I.Joe. Unlike Star Wars, they're not beholden to an outside agent (such as LucasFilm) for approval.
I suspect what's going on here is that, with the 25th Anniversary-related line having pretty much run its course, Hasbro is hoping to initiate a significant relaunch of G.I.Joe in conjunction with the movie, one that will carry well beyond the movie, and isn't necessarily directed at longtime collectors such as most of those here on JoeCustoms.
They're trying to draw in the kids that are suddenly "hearing" about G.I.Joe, possibly for the first time in their lives, and maybe, echoing some of what Dream said, don't really care whether a given vehicle or even figure was in the movie or not as long as it looks cool.
And they may be hoping that some older collectors will see the new product and, much like some of the kids, not be all that particular whether it was in the movie or not as long as it's interesting.
Really, the same can be said about the Transformers "movie" line -- unless there really was a biplane named Ransack in it (haven't seen that movie either -- not dissing the movies -- I just despise movie theaters).
Speaking for myself, I've seen some vehicles that I'm really not interested in, but I've seen some that I am. I really don't care if that new Helicopter is in the movie or not -- it's a darned impressive-looking helicopter, and I expect to get it when it comes out.
And, just on a note about figure formats, I'll still maintain that one of the cool things about the vehicles is -- they'll work with just about ANY G.I.Joes from ANY era.
I'm not all that surprised that the Steel Crusher is one of the few vehicles that's really movie accurate. It looks it, certainly, and it looks pretty cool. But I'm willing to forgive some of the rest of it as far as movie presence or accuracy is concerned if it makes an interesting addition to my collection. And I think some of it will. Just my two cents.
