Dangerous When Wet is a 1953 American live-action/animated musical comedy film starring Esther Williams, Fernando Lamas and Jack Carson, directed by Charles Walters and featuring an animated swimming sequence starring Williams with the cat-and-mouse duo Tom and Jerry.
Plot[]
Katie Higgins is the wholesome daughter of a dairy farmer. The entire family (Pa, Ma, Suzie, Katie, and Junior) start the day with a brisk song and morning swim. One day, Katie meets traveling salesman Windy Weebe, who is instantly smitten. Weebe sells an elixir that purports to turn the user into a peppy, fit specimen, and upon noticing the entire family's strength in the water, he suggests that they all attempt to swim the English Channel. The family and Weebe travel to England and learn that the channel's distance is 20 miles "as the seagull flies," but with the currents, it can be as many as 42 miles. Katie is the only one of the family strong enough to attempt this feat, so she begins training with Weebe as her coach.
On a foggy day, Katie is rescued from the water by handsome Frenchman Andre Lanet, who falls for Katie and tries to woo her. Katie tries to stay focused on her swim, but she is pulled in different directions by Lanet and Weebe. In a dream sequence, Katie performs an underwater ballet with cartoon characters Tom and Jerry as well as with animated depictions of the people in her life. The film ends happily with Katie's attempt to cross the channel and the resolution of her love-life issues.