To set up his ultimate act of revenge in The Prestige, Angier (played by Hugh Jackman) asks his ingenue Cutter (Michael Caine) to help him book a spectacular venue for Angier's new magic show, which features the trick in which Angier disappears from the stage and reappears at the top rear of the theater.
Cutter arranges a demonstration of the trick with a powerful man named Ackerman, whose attitude suggests he's seen lots of magic and is very hard to impress. Upon seeing the demonstration, however, Ackerman clearly is blown away -- he seems to grasp immediately that the trick is not just slight-of-hand but is somehow real:
ACKERMAN (quiet, haunted): Pardon me. It's very rare to see... real magic. it's been many years since I've seen...
How did Ackerman know that what he had just seen was not just a trick but "real magic"? (It seems unlikely the transporting trick by itself would be so impressive and novel to an expert like Ackerman, as Angier's rival Borden had been become quite famous performing a similar trick right there in London.)