Photo: Jemal Countess, Getty Images

One of the biggest spectator sports in Hollywood is watching Renée Zellweger's weight fluctuate with every "Bridget Jones" movie. But, those days might have come to an end. E! Online reports that the itty-bitty actress won't be plumping up the old-fashioned way for the movie's third installment; instead, she'll wear a fat suit.

Admittedly, it's hard on the body to continually gain, then lose so much weight (E! puts the number at 30 pounds). It's not healthy to yo-yo diet, even if it is for your job. And then, there's the fact that it's just plain hard. A source told Britain's Reveal magazine that the actress had difficulty dropping the weight after the last movie in 2004. Five years later, one can't imagine it's going to be any easier!

Some reports say that the newest "Bridget Jones" will focus on our favorite diary-keeper trying to have a baby, and costume designers have plenty of experience creating fake baby bumps. But, what about her face? You can fake larger breasts, a tubbier tummy and thicker thighs with wardrobe, but will makeup be able to match her angular face to her curvy body?

Zellweger might not be willing to stay on this gain and loss roller coaster, but plenty of other stars are up for the challenge. This former "king of the world" is one of the most recent to lose lots of weight, and he's not alone.