The scene with arrival of the Autobots on Earth and Optimus Prime's first transformation scene in TF1 was incredible. It got claps the first time I watched it in theaters.
Now that I've seen the entire trilogy, I can truly say this is my absolute favorite scene in the entire series of films. The music, the effects, the camera angles - all of it was exactly what I expected and hoped for in a Transformers film. As a long time fan, I actually felt tears welling up the first time I saw this in the theater. It was like the kid in me was just so awed that he beamed out of me. It was a powerful moment.
Then not too long after, Bumblebee peed on Simmons...