Alternate timeline
(covers information from an alternate timeline)
Grace Kelly was a 20th century American actress. She once starred in To Catch a Thief together with Cary Grant.
In an alternate 2374, when the USS Voyager was severely damaged by the Krenim in 2374, B'Elanna Torres wrongly remembered Clark Gable starring in To Catch a Thief alongside Kelly, when in fact it had been Cary Grant. Harry Kim believed this mistake came from the identical initials of the two, C.G. (VOY: "Year of Hell")