“Yoga Hosers” (*1/2 out of four) was a flashy but dumb teen comedy about two teenage yoga and music enthusiasts (Lily-Rose Depp and Harley Quinn Smith) who team up with a dimwitted hunter (Johnny Depp) to stop an evil presence (Ralph Garman) that is threatening their native Canada. Yet another comedown from writer-director Kevin Smith who in better days directed “Clerks” but that’s seeming farther and farther away every year for him. Co-stars Depp and Smith are engaging and could have been fun with an actual script. Other co-stars Johnny Depp and Garman are nearly unwatchable.