Re: Star Wars Episode VII
As for the cast being sprawling - I wouldn't worry one iota about it. If it is the first of a Trilogy it will be a good set up for the rest of the films.
Here’s why I think the “sprawling cast” thing is a complete non-issue (though for a different reason than christrom):
SW (at least since 1997) has a made a big deal of announcing actors in the films early in production - even giving them vague character descriptions - which makes each one seem like another “major player” in the films and keeps the buzz up. Take them all together, and it always adds up to a “sprawling” cast - but then you see the film and the actor is only a bit player, with little (or no lines).
I remember getting really intrigued in 1997 when the first cast announcements were Hugh Quarshie (described as something like “a military leader” - turned out to be “barely there” Captain Panaka) and Ralph Brown as “a grizzled pilot who instructs Anakin” (I expected a mentor who made Anakin the “great pilot” we heard about, instead Mr. Brown was Ric Olie, who basically has 15 seconds of explaining the Naboo cruiser controls to a 9-year old kid.) Heck, Kiera Knightley was announced as “aide to the Queen” - she had a max of 3 or 4 lines, and even then we were supposed to think she was Natalie Portman when she said them, not a separate character.)
Same for AOTC - Leanna Walsman announced early on as “a fearsome bounty hunter” (so exciting! - turned out to be Zam Wessell -important to the plot, but maybe 2 lines); Joel Edgerton and Bonnie Piesse (Owen Lars and Beru - did any of them even have any lines at all?), Rose Byrne announced as a “royal handmaiden” (onscreen for only a few seconds before being killed.)
My point being - yes, there are lots of cast members being named, but I suspect many - or most - of them will be on screen only very minimally (but it gives Disney/Lucasfim a new character whose backstory can be fodder for countless novels and comic books.)
M
Edited to add a few more names prominently announced early in production of Episodes I/II (I recall because I was following the news ravenously on AICN, verious Usenet groups, etc.)
- Bia Ling (turned out to be a background something or other - not even sure she actually made it into the film, but is in some reference books)
- Michonne Bourriague - a LOT of hay was made by LFL about the new badass Aurra Sing. I believe she was shown in one (blink-and-you-miss-it) scene in the pod-race)