Basic Trope: Something is accurately described by its name.
Straight: A film called Bob Becomes a Zombie is about Bob becoming a zombie.
The film is called A Guy Named Bob Is Bitten By a Zombie And Turns Into One Himself and this is literally all that happens in it.
The film is titled Three Hundred Twenty-Five Zombies Escape From Eternal Imprisonment Under The Island Of Java And Two Of Them Bite A Lawyer Named Bob Causing Him To Turn Into A Zombie Himself Where From Then On He Rampages Throughout New York City And Destroys Two Gift Shops, A Supermarket, And Blows Up An SUV Forcing His Friend Alice To Chase After Him For An Hour Until She Defeats All Of The Other Zombies Using A Magical Sword She Found At A Strange Antique Shop And Returns Bob Back To His Original Form.
That's nothing! How about this: Every single, little, last, detail down to what happens in the background is stated in the title.
The title is literally the entire script of the film.
Downplayed: Zombie Adventures is pretty Self Explanatory, yet exactly what the adventures are can only be answered by watching the film.
Justified: Bob is a very important figure and the film wants to document and inform the masses about this transformation perfectly.
The film is actually about a zombie becoming a guy named Bob.