Overview
Blame It on Rio is a 1984 American romantic-comedy film directed by Stanley Donen and written by Charlie Peters and Larry Gelbart based on the 1977 French film Un moment d'égarement, starring an ensemble cast, including Michael Caine, Joseph Bologna, Michelle Johnson, Valerie Harper, Demi Moore, and José Lewgoy.
Plot
Matthew Hollis is married to Karen, and he is the father to teenage daughter Nikki. Victor Lyons, Matthew's colleague and best friend, who is going through a divorce, is father to 17-year-old Jennifer. Matthew's marriage is not going well for reasons that are unspecified. Shortly before they are to embark for a trip to Rio de Janeiro, Karen says she is going on vacation to Bahia by herself to "think about everything." Matthew and Victor agree to go to Rio with their daughters. Jennifer and Nikki share a room, where she says to Nikki "Your father is so sweet...I used to have a crush on him", to which Nikki replies "Me, too". At the beach, Victor and Matthew see a lot of musicians and walk by numerous young girls and women walking around topless. The fathers spot their daughters in their bikinis in the distance, but the girls turn around to reveal that they are topless as well.
After dropping the girls off at a wedding, the men visit a pub. After Victor goes with a local divorcée, Matthew goes to the wedding, where he runs into Jennifer. Suddenly, all attendees of the wedding strip to their briefs and panties and take a dip in the cold ocean. Jennifer insists on having Matthew join them and takes off her top. As soon as Matthew says that the water is warmer than he anticipated, Jennifer passionately kisses him, which Nikki witnesses, and the two proceed to have sex on the beach. The next morning, Matthew stresses it can never happen again but to no avail, Jennifer seduces Matthew in various inappropriate situations. At one point, while Victor and Nikki are having breakfast in the garden, Jennifer kisses Matthew while he is shaving and transfers some shaving foam to her cheek. At another point, she touches his crotch bulge from under the table while having dinner, and eventually the two make love again.
Jennifer tearfully tells her father that she had an affair with an "older man". Victor becomes furious and sets out to hunt down the mystery man, expecting Matthew to help.
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