Being an Aviator I can say that this is entirely possible, without getting into crazy details a plane can fly on one wing alone if they are producing enough lift with the reamaining wing. A barn door can fly if it has the right amount of lift being produced. It all boils down to Bernoullis principle and some basic laws of physics. Without getting into boring detail.
Is this possible --Yes
Is this video real-- I am a Aviator not a film editor so its hard for me to say parts of it seem real yet others do look to be CGI
Here are some interesting links if you are interested in how an airfoil works and produces lift.
(
http://en.wikipedia.org/wiki/Bernoilli_equation)
http://en.wikipedia.org
/wiki/Lift_equation
http://en.wikipedia.org/wiki/Airfoil
Here is a History channel show on something exactly the same but with an F-15 that lost a wing and still landed.
http://www.youtube.com/watch?v=-_EXtBEaBbs