Fools Rush In (1997) on Netflix

Plot summary

Alex Whitman is an architect from New York, in Las Vegas to oversee the construction of a nightclub. He meets Isabel Fuentes, a photographer, and the two spend a night together; she leaves quietly while he sleeps. Three months later she comes to him: she is expecting his baby and plans to raise it by herself, though her family will not approve. She asks him to a dinner with her relatives so they can meet the father, and he accepts. The cultural differences between them do not stop him from wanting to see her again, and he proposes. They marry quickly in a Las Vegas chapel, with an Elvis impersonator among the witnesses.