This article was originally published at Lizanest.com.

Hollywood is full of iconic onscreen couples whose chemistry lights up the screen—but behind the scenes, things weren’t always so romantic. From clashing personalities to creative disagreements and long, stressful shoots, some co-stars struggled to get along even while playing lovers, partners, or close allies. These unexpected tensions add a whole new layer to the stories we thought we knew. Here’s a look at the movie and TV pairings who made magic on camera but dealt with friction, frustration, or full-blown feuds once the director yelled “cut.”
