How long will transformers 3 be in the movies?

I havent seen it yet but my friends told me its good. I plan to see it next week at the cinemas,How long will transformers 3 be in the movies?I haven't seen it either and I wanna see it before it goes off the theaters... It came out June 29. So it should be there for about month August first. At the most. U should go before that date.. So hope I helped... Yahoo!