I am bit confused and lack of words when I am trying to say this. Sometimes when a movie is full of thrill and suspense we should watch it till the end to get the suspense revealed. But due to lack of time or movie length, we don't watch it from the beginning to the end. In this case, how do native speakers express to watch a movie till the end?
Watch the whole movie in one sitting; or
Watch it till the end; or
something better and quick.