The concept here is brilliant, as it was in Buster Keaton's "Sherlock Jr." or Woody Allen's "The purple Rose...". Collision between fiction and reality is given an ironical and witty treatment, and that makes "Last action hero" one of the most interesting commercial action films of the late years.
Then, why everybody says it is flawed? Aside from the ambivalence of having born with a smash hit vocation and wanting to be something more, which makes the original premise to lose weight along the way, I would say the principal flaws have its roots in a bad structured screenplay: the plot of the movie within the movie (a vane, not original at all mob story) is given too much importance, and when we come to the real point (the confrontation between fiction and reality) we are almost at the end and then a lot of a good story beats happen quickly and disordered, creating a little bit of a mess.
Anyway, let me insist this is, at least, very curious and fun, and movie lovers will appreciate it above all its flaws.
Then, why everybody says it is flawed? Aside from the ambivalence of having born with a smash hit vocation and wanting to be something more, which makes the original premise to lose weight along the way, I would say the principal flaws have its roots in a bad structured screenplay: the plot of the movie within the movie (a vane, not original at all mob story) is given too much importance, and when we come to the real point (the confrontation between fiction and reality) we are almost at the end and then a lot of a good story beats happen quickly and disordered, creating a little bit of a mess.
Anyway, let me insist this is, at least, very curious and fun, and movie lovers will appreciate it above all its flaws.