I have no intentions of seeing this movie myself,
but the thing is that there are a MILLION fan-designed and anime series with planes that look like the "Stealth" planes.
If you really must get reference, you might have to wait for the DVD release. I'm sure the film wil be out on DVD by the end of the year... Most of this year's box office duds will. :lol
P.S. -- There have been rumors for years of a plane VERY MUCH like the Stealth design. Basically, it's a cross between an F-14 and X-29 design. It features forward-sweeping wings and it's codenamed "Switchblade" for obvious reasons.
I frankly think the rumor's bunk because variable sweep/swing wings have been abandoned for the better part of 20 years now. It's just easier to design a conventional FIXED wing with variable camber and lift devices without having to account for 5,000-8,000 extra pounds of mass that all the swing motors, gears, and additional structure require for variable sweep. Variable sweep just makes planes bigger, heavier, and a lot more costly in terms of purchase price and maintenance man hours. That last factor is a BIG part of the reason for why the F-14 Tomcat is being retired next year. The maintenance requirements for that plane just made it uneconomical to keep it in service any longer...