15Ben Affleck and Jennifer Lopez - Gigli (2003)
Ben Affleck and Jennifer Lopez were engaged during the filming of Gigli, and one wonders if the lack of chemistry on-screen might have mirrored a lack of chemistry in person, since the couple split up less than two years after making the movie together. The concept of them having
a conversation about sex while J-Lo does yoga, glistening with sweat, is inspired, but it just falls flat. Part of the problem is Ben's stupid smirk throughout, but J-Lo's comparison of a penis to a "sea slug" doesn't help amp up the sexiness factor.
When they finally do get around to kissing and rolling around together, we appreciate that they're not afraid to laugh a little, but their chemistry falls far short of "steamy."