For Tim and Mary, it's a case of like at first unsight after a server decides to seat them together along with their less-than-a-perfect-match friends. She quickly gives him her number once outside the eatery. From there, typical relationship moments tumble by—the first real date, the first sexual encounter, the sharing of living space, the meeting of parents, the proposal, the exceptional rainy-day wedding sequence (you will be Googling Jimmy Fontana and his song, Il Mondo) and so on, all repeated, reshaped and improved slightly by Tim's time-travel twiddling.