In a scathing and bizarre piece of writing, a British newspaper columnist has dismissed Emma Watson's speech at the UN summit in New York last week as "whining, leftie, PC crap".

Referring to Watson's role in the Harry Potter movies, The Sun columnist Rod Liddle began his wrap of her address in Friday's paper with "Hermione Granger has been addressing the United Nations General Assembly. Nope, not kidding."

Liddle continued, "Anyway, instead of telling them all the rules of quidditch or how to turn someone into a frog, she bored them all rigid with whining, leftie, PC crap.

"Just like all actresses do if people are stupid enough to give them the chance."