AceShowbiz -

It seems that the crew for "Transformers 3" had a busy weekend on Saturday, July 10. While some people opted to take a day off, the filmmakers spent the day filming scenes for the upcoming movie in Chicago.

Among the parts shot that day is including the footage which sees Optimus Prime racing along on the street, taking a corner and driving through some explosions. Another scene which was filmed on Saturday and captured on video as well as pictures is the one which features squirrel suit jumping off the top of Sears Tower.

While those two scenes do not feature any of the cast members, Shia LaBeouf apparently also joined the production that day. Screen Rant has obtained some pictures which capture the lead actor running down the street with his double right behind him.

On another "Transformers 3" news, producer Lorenzo di Bonaventura recently sat down with Coming Soon and explained how Megan Fox's departure affected the script which had been written before. "Definitely some script chances for sure," he admitted. "I wouldn't say a tremendous number, but yeah, absolutely there were some changes, and I think as we're going along, we're discovering new ones we have to make as a result of them."

Bonaventura additionally hinted that this third "Transformers" film might be the last installment for him and director Michael Bay, although it will not be necessarily the end of the film franchise for Paramount Pictures. "It may not be the end of the line of Transformers for Hasbro and Paramount, but I would think so. (For) Michael, I'm sure it is. He's spent a lot of years working on one thing," he told Coming Soon.

On-set video of 'Transformers 3' - Optimus Prime takes a turn:

On-set video of 'Transformers 3' - Optimus Prime drives through some explosions:

On-set video of 'Transformers 3' - Squirrel suit jump off the top of Sears Tower: