Shia LaBeouf got into position and wildly gestured through a scene with his costar Rosie Huntington-Whiteley on the Transformers 3 set in Detroit yesterday. Shia and Rosie reunited in the Midwest after spending the Summer blowing up the streets of Chicago with Patrick Dempsey and Josh Duhamel. Shia took a short break from filming to join his girlfriend Carey Mulligan at the Toronto Film Festival where she was premiering Never Let Me Go. While there, Shia spoke to the NY Times about the intensive research he did before filming Wall Street: Money Never Sleeps. Shia and Carey will reunite to promote their movie before its Sept. 24 release, but we may have to relish their chemistry onscreen rather than on any red carpets since they've decided they prefer not to pose together for now.