there are 3 basic structures that an opening of a film can have. these structures are:
Firstly a narrative opening with the titles running throughout, this opening is an opening that is connected to the main film, this is an effective opening because it gives you an insight of the main film for example in the opening of "The shining" we see a car travelling in a certain isolated place, so we assume that the car has something to do with the main film.
Secondly a discrete title sequence, this is a totally seperet miniture film that is in the opening that introduces the film, this is effective because it gets the audience thinking, what is going on? for example in the opening of "seven" we see quick extreme close ups.
Thirdly Titles over a blank screen, followed by the narrative opening, this is effective because it connects to the sound over it. "Donnie Darko" has a blank screen behind the title, which gives a Quick and simple effect.