A young waste incinerator employee meets with his show business mentor. “On Showbiz,” directed by Ryan McGlade, is a comedic glimpse at two unlikely acquaintances and their stylistic differences — one, Jeremy, a contemplative poet, the other, Murray, a showbiz veteran who’s always on, clock always ticking to the next punchline. When they meet up to talk shop (no explanation of their relationship or backstory is given, ha), we watch as Murray confronts Jeremy about his lack of pep, and strange ideas about what makes art. For instance, Jeremy wants to start a talk show using a wall of trashed fire extinguishers as his backdrop, and Murray could not be more confused. Simultaneously a goof on showbiz personalities and somber introverts finding inspiration in decay and neglect, “On Showbiz,” keeps it simple and quotable, as in: “fire extinguishers, that’s your life?” Directed and edited by Ryan McGlade. Starring Jeremy Levick and Murray Hill. D.P.: Cody Powers. Production Sound: Sam Beneitone. Original Score: Rick Szybowski.