It's similar in that two youngsters fell in love while they were on a vacation. It featured innocent first loves and love lost. However, Unforgettable is insincere. It was created to manipulate tears out of gullible viewers, who probably came out to watch this movie due to the popular main cast. Classic wasn't perfect, but the story, at least the one set in the past, is more believable with more tangible sensitivity. If you want to reminisce on bittersweet first love, don't waste your time on Unforgettable and watch Classic instead.