Zoolander
In the cemetery scene, where David Duchovny’s character talks about how the fashion industry was behind all the big political murders of the past 100 years, Ben Stiller’s character asks, “Why men-models?” Duchovny explains but Zoolander asks again, “But why men-models?” It turned out that Ben Stiller just forgot his next line and just repeated the previous one. Duchovny decided to improvise and said, “Are you joking? I’ve just explained it.” The funny scene was kept in the film.