Them! 1954 colorized (James Whitmore, James Arness)

Them! 1954 colorized (James Whitmore, James Arness)
After several people turn up missing or dead in the New Mexico desert, a police sergeant (James Whitmore) teams up with an FBI agent (James Arness) to investigate. A scientist (Edmund Gwenn) and his daughter (Joan Weldon) discover that the cause is a nest of gigantic ants, who were mutated by the first atomic bomb explosion 9 years earlier.

James Whitmore as Sgt. Ben Peterson
Edmund Gwenn as Dr. Harold Medford
Joan Weldon as Dr. Patricia Medford
James Arness as Robert Graham
Onslow Stevens as Brig. Gen. Robert O'Brien
Sean McClory as Maj. Kibbee
Fess Parker as Alan Crotty
Sandy Descher as The Ellinson Girl
William Schallert as Ambulance Attendant
Leonard Nimoy as Army Sergeant in Information Center

I colorized this using AI software that doesn't always get the colors right, but I think it looks fairly natural. Hopefully a more professional job will be done someday.