In the movies, it's all about chemistry. When the leading lady and  leading man look at each other, you want to feel it!!  A "Best in Film" survey jointly conducted by ABC News and People magazine found these couple to generate the most heat!  

1. Leonardo DiCaprio and Kate Winslet in "Titanic": 23%

 Young  love that never dies.....

2. Clark Gable and Vivien Leigh in "Gone With the Wind": 15%

Love and Hate.....HOT

3. Richard Gere and Julia Roberts in "Pretty Woman": 14%

Forbidden love.....

4. Humphrey Bogart and Ingrid Bergman in "Casablanca": 12%

Lost love....

5. Spencer Tracy and Katharine Hepburn: All their movies 10%

Sweet,funny,  perfect love....