LOOK, SEE, OR WATCH ?
Many students often confuse look, see and watch.
See means to notice people and things with your eyes:
She saw a big spider and screamed.
Mary saw the car drive up the road.
Look is used when you are trying to see something or someone:
I´ve looked everywhere but can´t find my keys.
I looked at the map to find the road.
Watch means to look at something for a period of time, usually something which moves or changes:
He watched TV all evening.
I watched the football match with some friends.
Note : while you are sitting in the cinema you watch a film, but before you go, you say you are going to see a film and afterwards you say you have seen the film.