Before the filming of an outdoor scene by the river, a gaffer was fixing the lights and noticed something floating by in the river. It was a dead body. The police were called and when they arrived, they anchored it to the dock, out of sight of the camera. They removed it after the scene was shot.
Kevin Bacon, who has a no-nudity clause, said his full frontal nudity was accidental. His nether regions were never supposed to show up because he thought Matt Dillon was blocking the shot. But director John McNaughton told The Huffington Post how Bacon's manhood made an unintentional cameo: "Kevin steps out of the shower and Matt throws him a towel, and he catches it and it covers him, and he did it in every take but one. It was a little miscue and it didn't cover him." When McNaughton saw a rough cut of the movie, he objected that editor Elena Maganini had included that very shot, but Maganini told him "It's not fair! You guys have scene after scene of topless babes. This is one for us." McNaughton agreed, but still had producer Steven A. Jones ask his friend Bacon for permission to use that take: "What I heard from Steve is that Kevin asked, 'How do I look?' Steve said, 'You look fine,' and so Kevin went 'No problem.'" Bacon later commented on Total Film that "I didn't think any more about it so I was shocked, really shocked, when everyone kept on about it after the movie's release. It really wasn't that big a deal. [Jokingly] That's just the camera putting on a few pounds." In 2015, Bacon shot a funny "Free the Bacon" PSA, encouraging more male actors to do full-frontal movie scenes.
Kevin Bacon said in an interview that he and the other cast members had trouble keeping track of the lies and twists on the script. "To determine their motivation in each scene, the cast had to gather with the director, writers, and producers to establish the sequence of events," Bacon said. "We'd sit in rehearsals trying to piece together what was going on in the script, whom we were lying to about what, and it'd just get so complicated we'd have to stop and rest."
Neve Campbell never appears naked in any sex scenes (even in the Unrated version) because she was still in Party of Five (1994) at the time, and her contract forbade her from showing any real nudity, though it was all allowed to imply nudity by showing her bare back during the pool scene.
In an interview with Maxim magazine, Kevin Bacon noted that he has a no-nudity clause in his contract, and that he was a producer of the movie, so technically he could have sued himself.