Colson Baker (aka Machine Gun Kelly) and Mod Sun (aka Derek Ryan Smith) are musicians attempting to transition into filmmakers. The men have made music videos, even collaborating on a long-form endeavor, 2021’s “Downfalls High,” but “Good Mourning” is their feature-length debut, and to ensure they have some type of hit on their resume, they’ve elected to make a stoner comedy, which always seem to end up profitable no matter the quality. They aim to create a new “Up in Smoke,” but they end up with another “How High 2,” and their lack of practice when dealing with the nuances of a big screen comedy is abundantly clear during the run time (about 85 minutes, but it feels three times as long). “Good Mourning” has no tricks or treats, marching forward as a dumb guy experience with dismal improvisation and generic plotting, putting a lot of faith in Baker and Mod Sun’s fans to be patient enough to sit through what’s essentially a joke-free endeavor. Read the rest at Blu-ray.com