Disneys The Little Mermaid is set to make a splash this weekend. The film is trending towards a $125 million Memorial Day weekend return. Based on those estimates, The Little Mermaid would be the fourth movie this year to cross the $100 million barrier in its debut following The Super Mario Bros. Movie $146 million, Guardians of the Galaxy Vol. 3 $118 million and Ant Man and the Wasp:...