Movies with computer programmers as the leading role.
#26
DVD Talk Hero - 2023 TOTY Award Winner
The Fly (1986). Brundle, while an "inventor", was also a programmer. Teaching the computer about the flesh and what not.
#29
DVD Talk Gold Edition
Maybe not exactly a programmer, but Spencer Tracy in The Desk Set. He's the engineer responsible for computerizing the research department of a TV network. Pretty early for computers to be the main theme of a movie also (1957).