Below is the official description provided to us by Hasbro. You can view a video demonstrating Starscream transformation and articulation here as well as our original news article from earlier this morning here.
Transformers: Movie Masterpiece Series MPM-10 Starscream
(Ages 8 and Up/Approx. Retail Price $149.99/ Available 9/1/2020)
Recreate your favorite Starscream scene from the first Transformers movie with the new Movie Masterpiece Starscream! The MPM-10 Starscream figure is an authentic Transformers collectible figure inspired by the CAD files from the first Transformers film and includes die cast parts and 150 deco ops with more than 50 points of articulation. The MPM-10 Starscream figure stands at 11 inches in robot mode and converts into the movie-inspired officially licensed Lockheed Martin F-22 Raptor Jet in 63 steps. The figure features highly articulated hands, flip up thrusters, a moveable mouth, missile and buzz saw arm attachments, and a Gatling blaster accessory.
Modeled after the Transformers live action movies, Movie Masterpiece authentic figures feature film-inspired details and accessories, ideal for displaying on collectors’ shelves. Available exclusively at Target.com and in-store 9/1/2020.
Special thanks to Powered Convoy and other Seibertronians for also sharing this information with us, as well as our friends at Hasbro for sending us these images and content directly.
I didn't realise anyone actually did it! No offence 
but yeah expecting a perfectly clean jet mode is unnecessary. The robot is the main attraction. The vehicle here looks fine as is, and clearly you don't need to display with the hand weapons attached, thats just a place to store them for vehicle mode if you so wish.
