Step 1: Decide to make a sequel to Donnie Darko, regardless of involvement of any original cast or crew
Step 2: Secure services of actor who played Donnie Darko’s younger sister, Samantha, a tertiary character. Name sequel s.Darko. Using only sound effects and footage from the first movie, construct trailer for sequel.
Step 3: Profit?
(it’s not so much a sequel, more like an afterbirth)