John Beckwithand (Owen Wilson) and Jeremy Grey (Vince Vaughn) made it look easy in the 2005 comedy "Wedding Crashers."
Now thanks to a mobile app, you can score a free meal, drinks, and leave the bride and groom both saying, "Seriously? I thought that was YOUR friend!?!"
OK, officially I can't recommend doing this, but check out the video anyway. What will they think of next?