What they need to do is find something else that Philip K. Dick wrote (not difficult to find) and turn that into a movie.
A Scanner Darkly was all right — couldn't shake the feeling throughout that if they had just not bothered with the fake animation effect, the whole thing would have been a good deal better, but it was a good watch.
Total Recall (original) — a classic. That's how you Hollywood-ize a PKD story.
Even Martian Time-Slip would work
but I think we all know that Ubik would make a great movie.
There's a whole host of untapped potential in science fiction. The Forever War, Ringworld, Dragon's Egg.
Even Mass Effect would make a good movie. Provided that they opted for femshep. Played by that woman from Prometheus/Girl with Mythical Reptile Body Art. I can see her nutting a Krogan, she has an interesting face that would suggest a more globalised future Earth, she's young enough to fit the bill and she's ripped enough to pass for a soldier. And we know that she could be paragon or renegade.
Other potentials include Jada Pinkett Smith, Zoe Saldana, maybe Tilda Swinton if it's a biotic shep because she's a bit spindly for a soldier, and she'd make a good Asari.
If they did the idiotic thing and went maleshep, I guess it would have to be that dude from Arrival/Avengers. or Tom Hardy. actually no, Idris Elba would make a great manshep, but if hollywood's still racist then he would also work as Anderson as well.
Gyllenhaal would make a good psycho/asshole shep but Hollywood won't go that route so why bother. besides he'd be better as Garrus.
Wrex... Vin Diesel's voice + CGI. Or hunka chunka shamoke from Riddick 3.
Garrus... Gyllenhaal.
Saren. Tough one. I'd say Gary Oldman but Saren's more of a tank than a mage. ah, now I know: McConaughey. he would do a good job. 'nilas, you jerk off? how many times? nah them's rookie numbers son' *boom*
Cumberbatch as Sovereign, Hugo Weaving as Harbinger.
Miranda and IM's voice actors can play themselves. Martin Sheen is a bit podgy for IM but the voice is irreplaceable. Viggo Mortensen with Sheen's voice somehow. Mortensen in Eastern Promises is a good visual match for IM. mcconaughey could work for IM as well as Saren.
fuck the other humans because they're irrelevant
black stormtrooper as jacob
rob lowe/matt damon as kaidan
justin long as that guy who dies like a bitch in first ten minutes of ME1.
ashley can be... i dunno. dr. cuddy actress is a good facial match but not a convincing soldier. though neither is ashley 'kill-her-on-virmire-without-a-moment's-hesitation' williams.
madonna as that asari justicar whose name I never remember.
joker. seth green is joker.
daisy ridley/another-suitably-wide-faced-but-attractive-woman as liara tony pony. actually no, jennifer lawrence, correct body type and looks good in blue.
richard gere as unimaginative-leap-from-thanatos-named, sensitive, dying assassin.
hmm, that leaves mordin. who's that guy who plays spindly mary jane smoking losers in at least a dozen movies? donny j qualls or something. fassbender could work if there's any movie budget left and he takes a puff of helium.
patrick swayze as stationary indoctrinated husk. he should be at the right stage of decomposition to only require some amazon fairy lights to be attached.
legion's voice as legion.
either way, the only people who should touch Mass Effect are Christopher Nolan or Guillermo del Toro. Without a doubt, Mass Effect is a story that needs the Inception noise and Nolan's sober gravitas.
and yet and at the same time I can see del Toro getting the humour, aliens and costumes bang on. Doesn't overuse CGI, another important point. Plus, Hellboy 1 already had the Lovecraftian, Reaper-esque element with the squiddy dudes coming through the portal; and del Toro grasps the bro squadron aspect well.