The writer maintains their storyline, and knows where he want to begin, link issues, and get to his desired ending. The first half of the script is rather slow, but does pick up some momentum. The "big event" of why and winning the contest really needs to be earlier in script.
There is a lack of information in action and character set-ups. We do not get a sense of the city environment the characters live and work. The writer does not give us any visualization of each characters age, ethnicity, appearance, a unique traits of their main characters.
There is not any character development that really wants us to care about Casey and Siren early in the script.
There are points when I'm hoping for Scooby-Doo and a few scooby snacks be added to make this more enjoyable.
There's nothing really plausible in the whole dynamics of the story, although rewritten in adult and real world context it might get some traction. But donut boy to big pharma CEO as if the real CEO want to truly walk away. Board members, and stockholders may want to express their opinion on this. Very few corporations of that stature have a single authoritarian voice. Even it this is just a movie script.
As in most critiques, I am suggesting the writer do a couple things to improve: subscribe to ProWriter for assistance in proofreading, punctuation, and getting better in pacing their dialog, and work selection. Second, Visit Scriptslug for movie scripts to review and a guide to improve your own.