One thing about giving the exposition first is that the rest of the movie essentially plays like a sequel.
Let's look at Alien. No opening exposition, we explore, learn, and are terrified along with the crew. The movie is self-contained. In Aliens, we already know what the monster is, the movie plays like a typical sequel (not to say it is bad, but it is structured that way.)
If we get the exposition first, we are getting a 5-10 minute "recap" and then the rest of the movie assumes we know who the monster is; it plays out like it is the sequel. The advantage, such as it is, is that the structure of the movie will match any actual sequel, the audience is set up for the same experience with John Carter II, etc. It is a homogenous formula, which is what the corporation likes. If the first movie is a hit, then the second will continue the formula.
The "no exposition" method isn't a guarentee of a good story. It was an excellent method with Alien, not so amazing with Cowboys and Aliens. But when it does work, it can turn out great.
Let's look at Alien. No opening exposition, we explore, learn, and are terrified along with the crew. The movie is self-contained. In Aliens, we already know what the monster is, the movie plays like a typical sequel (not to say it is bad, but it is structured that way.)
If we get the exposition first, we are getting a 5-10 minute "recap" and then the rest of the movie assumes we know who the monster is; it plays out like it is the sequel. The advantage, such as it is, is that the structure of the movie will match any actual sequel, the audience is set up for the same experience with John Carter II, etc. It is a homogenous formula, which is what the corporation likes. If the first movie is a hit, then the second will continue the formula.
The "no exposition" method isn't a guarentee of a good story. It was an excellent method with Alien, not so amazing with Cowboys and Aliens. But when it does work, it can turn out great.