"Bartemius! Not trying to lure Potter into one of the Ministry's summer internships, are we? The last boy who went into the Department of Mysteries never came out!"
Barty Crouch Jr (impersonating Alastor Moody) to Barty Crouch Snr[src]

A summer internship is most likely a programme through which a student from Hogwarts can experience working for the Ministry of Magic during the summer holidays.


Bartemius Crouch Jr, disguised as Alastor Moody by means of Polyjuice Potion, accused Bartemius Crouch Snr of trying to lure Harry Potter into one of these positions. He also alluded to the fact that the last intern who went into the Department of Mysteries was never seen again.

Behind the scenes

The word "intern" being essentially as American English usage, this is presumably one of those modfications made for the film, in order to increase its accessibility for an American audience, and, by extension, an international one, given the prevalence of American English and cultural norms.