10 years I've watched these movies & I did not know the scene of Gandalf hitting his head in Bag End was not scripted.
Lotr / The Hobbit
El Hobbit: Un viaje inesperado. Estreno: 14/12/2012
It looks like someone said to him "I can't believe you just did that" and that was his response
Thorins last words to Bilbo. I go now to the halls of waiting to sit beside my fathers, until the world is renewed. Since I leave now all gold and silver, and go where it is of little worth, I wish to part in friendship from you, and I would take back my words and deeds at the Gate. I am going to sob at this part in the movie.