In order for something to happen in real world, it needs to form in your head first. Nothing changes until you figure out the ways to connect the mind and the world.
In this regard “The Secret” and “the law of attraction” are reality based constructs, as they have foundation in your brain. But in that particular “self development” movie, there is a significant neglect of the action part of the things. For uneducated masses, this movie created more damage, than value.
Now we have an army of people who wish for things, without acting to get them. While achievement comes from synergistic effect between acting and thinking. Failure comes from leaning too much into one aspect of these two.