Aim For A Smile

(Willing) Suspension of Disbelief =

a willingness of a reader or viewer to suspend his critical faculties to the extent of ignoring minor inconsistencies so as to enjoy a work of fiction.

The phrase was coined by Samuel Taylor Coleridge in 1817, writing:

it was agreed, that my endeavours should be directed to persons and characters supernatural, or at least romantic, yet so as to transfer from our inward nature a human interest and a semblance of truth sufficient to procure for these shadows of imagination that willing suspension of disbelief for the moment, which constitutes poetic faith.

(c) Biographia Literaria