As part of the launch of The Avengers movie on Friday, participating AMC Theatres nationwide are hosting a one-day Ultimate Marval Marathon of six comic book films, for $40. The all-day ticket gets you a screening of Iron Man, Iron Man 2, Captain America, Thor, and one more film — a midnight screening of The Avengers. The show — or shows — start at 11:30 a.m., and continue through the midnight screening. That’s more than 14 hours of good guys and bad guys, some of them in 3D. In New York City, participating AMC theaters include Empire 25, Kips Bay and Lincoln Square. Click here for entire list of theaters and to buy tickets. And remember to take bathroom breaks.