I liked it but I think the major theses - that everything can be traced to a series of causes that can not be changed by intervention is deeply flawed!! It is a drama and that sort of thing doesn't really matter - or wouldn't if they did not make such a big deal over it. It may be true that how far a pen rolls across a table top is determined by forces and the laws of physics but it does not explain why someone pushed it, or how hard, in the first place! I won't attempt to discuss the multiverse! And, does it not owe quite a lot to the Matrix?