No need to take window out... Fairly easy with steady hand and lots of soapy water. I saw the pro did it on my car... looks very straightforward. To cut the film... he sprayed the window on the outside... with window slightly down 1"... and cut the film along the edge of the glass... on the bottom of the tint, he leave extra so he can tuck it in with bondo type scraper/squeeze.
Then he would roll the window up and sprays the inside of window... lots... peel the film... and put it on... do some final trimmings... then tuck the extra film downward... spray on the film and squeeze the entire tint to remove all bubbles.