Doing a little investigating after several people have said that a lot of the animation in the trailer is made especially for the trailer as tests and will not be in the final movie and there's plenty of interesting things that can be discovered in the trailer just by looking close!
First off, one person on animationguildblog said that the shot of Rapunzel's hair falling on Flynn and Maximus laughing at that, will NOT be in the movie. So that's 1 thing we know for sure!
The second big clue of a shot that's probably not in the movie comes with a visual aid, to illustrate my point:
4 visuals, the main shot of the tower and 3 inset visuals. Look at the plants on the side of the tower. Visual 01 and Visual 03 match the growth of the main visual, but Visual 02, where Flynn is thrown out of the tower still tangled up in Rapunzel's hair in his chair does not match. There are plants missing in that shot. So good chance that this particular shot is also just for the trailer. Visual 03 seems to have TOO MUCH flowers along the side of the tower.So maybe that's also a test shot for the hair or something...
Next big thing also comes with a visual:
Look closely at the environment behind Flynn. Same piece of the room, same closet, standing mirror etc. BUT, look at the paintings on the wall. In the left picture you can see Rapunzel's signature paintings that she does all over her walls like that first promotional still already showed us are there, but in the right side picture the walls are empty. The closet is also plain wood, while the left side closet it painted blue. And the mirror is painted in the left side. Another difference is the thickness of the windowframe, the wooden beam supporting the roof is quite thin on the left side and really thick on the left sided picture.
Which makes me think the painted walls shot is more final then the right sided shot. If you think about that then there is another difference:
Two different shots, same angle, but the background is completely different. In the right side you can see some of the paintings on the wall behind Flynn, on the right side no paintings, but also completely different furniture and stuff. I'm thinking the painted shots are far more definite then the unpainted wall shots. Which makes me conclude in the following, first a selection of screenshots of shots in the trailer that I think are not definite yet because there are no painted walls. They either might be made completely as tests for the trailer and not be in the movie, OR not be finalised yet and get painted walls and re-rendered later on.
First a selection of shots without paintings:
A now a couple of shots from inside the tower where you CAN see paintings on the walls:
This leads me to a somewhat funny and quite huge conclusion. What if the entire sequence of Flynn being tangled around by the hair is actually not even in the movie and was just test animation? I mean why would Rapunzel knock Flynn unconscious with a frying pan and then hide again? to have him wake up and fight her hair and get tangled up in the chair. Would it not be easier for Rapunzel to hide when he enters the tower, then knock him unconcious and while he's unconscious tie him up in the chair and wait till he wakes up. Sounds way more logical to me. and when looking at the shots where there are no paintings on the wall, it does match my theory! I even think Flynn doesn't wake up like he does in that close-up shot that zooms out quickly to reveal he's tied down in the chair, but he gets woken up when Pascal sticks his tongue in his ear.
After this long post and me playing mister marple, what do you guys think?
And I don't remember that about MTR- I'll have to watch the trailer again. Thanks 
