This is a problem sometimes characterised as “undepicted action” or “telling instead of showing.”.    From Wordnik.com.  [2008 March « Exile on Ninth Street] Reference

Images themselves take a back seat, as in Blitt's cartoon where what is actually visible is dependent on something undepicted: knowledge of the magazine's politics.    From Wordnik.com.  [Barry Blitt and controversial cartoons « Drawn! The Illustration and Cartooning Blog] Reference

Whatever is unnamed, undepicted in images, whatever is omitted from biography, censored in collections of letters, whatever is misnamed as something else, made difficult-to-come-by, whatever is buried in the memory by the collapse of meaning under an inadequate or lying language—this will become, not merely unspoken, but unspeakable.    From Wordnik.com.  [Isn’t it good we have men to tell us what to do] Reference

For starters, the entire first chapter is devoted to an act that, not unsurprisingly, goes undepicted in Jackson's movie, a literary moment of ugliness that sets the table for the redemptive tale that makes up the rest of the book.    From Wordnik.com.  [Evening Mail news round-up] Reference