A reader wrote to the Grammarphobia blog about a line spoken by George Clooney in the film The Monuments Men:
We have been tasked to find and protect art that the Nazis have stolen.
The reader suggested that this was anachronistic, as the use of task as a verb is fairly recent. Other people complain about task being used as a verb at all. But Grammarphobia pointed out that the use of task as a verb is in fact very old.