If you are looking for a "set of 4" (tetralogy) movies related to the word "Steel," the most prominent examples include:

: Follows Neo's journey from a cubicle worker to the "One" in a simulated reality. Why it's "Fancy"

She smiled, and for a moment the projectors seemed to answer—Steele with a precise click, Fancy with a thread of warm light, Rustie with a sleepy mechanical chuckle, Little Kino with a tiny, steady blink. Maren locked the back room and walked out into the rain, the city a watch wound once more. The key sat warm in the pocket of her coat, as if it, too, had been mended by use.