Bella in Twilight: Eclipse
Despite the popularity of this franchise, they were best known for the horrible wigs. Kristen Stewart had recently filmed a movie based on The Runaways and had to cut her hair for the role. That meant that the crew of Twilight had to figure out a wig for her stat. It didn't really work out, and it was super noticeable, especially among hardcore fans.
The X-Men in The X-Men (2000)
Yes... the entire cast of The X-Men had some of the most controversial costume choices to date. In the comic book series and the 90s cartoon series, the X-Men gang all wore blue and yellow uniforms. For the movie, director Bryan Singer decided to go with an all-black ensemble. Naturally, this enraged many devout fans.