It doesn't entirely gloss over it. In the Half Blood Prince Professor Slughorn says that it's one of the most dangerous potions. Quote below is from the book but he does say this in the movie as well.

“Amortentia doesn’t really create love, of course. It is impossible to manufacture or imitate love. No, this will simply cause a powerful infatuation or obsession. It is probably the most dangerous and powerful potion in this room —oh yes,” he said, nodding gravely at Malfoy and Nott, both of whom were smirking skeptically. “When you have seen as much of life as I have, you will not underestimate the power of obsessive love. . . ."