It is true that we are determined by time, space, the laws of physics, and so on. We seem to believe we possess some kind of control over our decisions, and that our personality, preferences and tastes are up to us. We believe that we are conscious and aware of every turn on the tracks on the train of life. However, it's actually more probable that a clueless blind dog is driving that train, and we're just along for the ride, thinking our will controls the vehicle.
That's why philosophers have wondered if the fate of people is conditioned by outside random forces, which shape our lifestyle from the cradle to the grave. The fact that if you weren't born to those parents, or in that neighborhood, or in a different country or century, your life would have been totally different, makes us wonder if humanity is really free, or if we just collectively act on instinct like biological robots.
this list has 10 films that explore this topic