For his role in “Primary Colors” in 1998, for which he would be portraying a Presidential candidate similar to Bill Clinton, the directors, and producers thought it might be more believable if Travolta gained some weight to portray the role.
They requested him to gain around thirty pounds, which was different from his usual slim physique seen in movies like “Grease” and “Saturday Night Fever.” To gain weight, he mentioned that he got to eat a lot of burgers and junk food, which he admitted he enjoyed. He said, “It’s been fun putting on the weight.” However, he eventually had to lose that weight for upcoming projects.