Yes, a full hour, or 60 min. There is not an intermission. I know to some it might sound like alot, but it's so entertaining, you'll forget all about it.
I also Highly Reccomend The golden Mickeys, it is the shortest show, at 45 min., but it's also well worth the time.
I reccomend Hercules only if you are a fan of the movie, the show is good, but not great. But Hades, Pain & Panic, plus the Muses make it very funny.
Hope this helps!! Have a Great Trip!