A source for Seibertron.com, "Chaingun" says he spoke with a guy on set and learned some information about what is being shot for Day 3 and 4 at Bethlehem Steel. He also reviewed the possible new vehicles for the Transformers in the film.
The main points:
- Wednesday, June 4th, Megan Fox is supposed to be on site for a stair chase sequence with Tyrese near a blast furnace.
- Shia Labeouf should be on site Thursday for scenes. (However, Wednesday night is scheduled as the last day)
- "A good chunk of the movie is taking place here." Not sure if "here" means Bethlehem or Pennsylvania but either way a 4 day shoot isn't enough to do more then one major action sequence.
- New vehicles seen were an Acura NSX, a grey and black Audi RS6.
- Also an old ice cream truck is actually two twin Autobots. (img source)
This might explain the various rumors that the entire core cast was supposed to be at Bethelem Steel. Some of the information may not be true but really you simply never know thanks to all the secrecy around the film.