This translates to: "Watch for the Amazing Spider-Man 2 trailer in front of The Hobbit in 3D".
The Hobbit: The Desolation of Smaug will be out on December 13. The Amazing Spider-Man 2 will be out on May 2, 2014.
Here's a synopsis: The film finds Peter Parker (Andrew Garfield) leading a busy life. Between taking out the bad guys as Spider-Man and spending time with the person he loves, Gwen (Emma Stone), high school graduation can't come quickly enough. Peter hasn't forgotten about the promise he made to Gwen's father to protect her by staying away – but that's a promise he just can't keep. Things will change for Peter when a new villain, Electro (Jamie Foxx), emerges, an old friend, Harry Osborn (Dane DeHaan), returns, and Peter uncovers new clues about his past.