Urusei Yatsura Movie 3: Remember My Love

Synopsis:

At birth, Lum was cursed to remain separated from the one she loves. Lum insists a red string of fate connects her to Ataru; however with his proclivity for girl hunting to her continual dismay, are they truly connected by fate? After convincing him to take her to the new amusement park, they attend a magic show and Ataru is transformed into a hippopotamus! Will their relationship withstand the curse, or are their red strings tied to someone else?