The movie shows 3 different scenarios. The differences between the 3 all start with the animated sequence at the beginning (with the dog in the staircase). Because that scene changes, the scenario changes (and most likely also because of Lola's subconscious knowledge of the previous scenarios). The pictures show what happens to those people after their interaction with Lola for each scenario. Every small thing could change their lives and destiny, it's called the Butterfly Effect.