Joel Courtney in Assimilate (2019)

The sci-fi thriller Assimilate tells the story of a trio of teenagers who, while filming a web series, discover that their town is under siege by creatures who are perfect copies of the town's residents, leaving them in a fight for survival. Leading man Joel Courtney shows some skin in the film's climax as his character, Zach, attempts to evade his copy and upload a video showing evidence of the sinister plot, alongside the female lead Kayla. Their naked copies chase after them, allowing for some rear nudity from Joel. While his other co-stars Calum Worthy (The Act) and Cam Gigandet (Burlesque, Bad Johnson, The Shadow Effect) are no strangers to nudity, they both stay completely clothed in the film.