Movies Like Gunnar Peterson's Core Secrets: Full Body Challenge

If you liked Gunnar Peterson's Core Secrets: Full Body Challenge (2003), a movie directed by Andrea Ambandos, here are 20 movies with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Pumping Iron (1977)
★ 7.2/10
Amateur and professional bodybuilders prepare for the 1975 Mr. Olympia and Mr. Universe contests as five-time champion Arnold Schwarzenegger defends his Mr. Olympia title against Serge Nubret and the shy young Lou…
2
Disclosure (1994)
★ 6.2/10
A computer specialist is sued for sexual harassment by a former lover turned boss who initiated the act forcefully, which threatens both his career and his personal life.
3
Hellraiser (2022)
★ 6.2/10
A young woman struggling with addiction comes into possession of an ancient puzzle box, unaware that its purpose is to summon the Cenobites, a group of sadistic supernatural beings from another dimension.
4
Magazine Dreams (2025)
★ 7/10
Aspiring bodybuilder Killian Maddox struggles to find human connection in an exploration of celebrity and violence. Nothing deters him from his fiercely protected dream of superstardom, not even the doctors who warn…
5
The Hole (2001)
★ 6.2/10
Four teenagers at a British private school secretly uncover and explore the depths of a sealed underground hole created decades ago as a possible bomb shelter.
6
Assimilate (2019)
★ 6.3/10
Three friends making a web series about their town discover that their neighbors are being killed and replaced by creatures who are perfect copies of their victims.
7
Relaxer (2019)
★ 6/10
Y2K is approaching fast, but Abbie can’t get off the couch until he beats an unbeatable level on Pac-Man.
8
Hellraiser (1987)
★ 6.9/10
A hedonistic man finds a mysterious puzzle box that summons a group of gruesome beings known as the Cenobites. These otherworldly entities open the doors to a dominion where pain and pleasure are indivisible.
9
Thinner (1996)
★ 5.9/10
An obese lawyer finds himself growing "Thinner" when an old Romani man places a hex on him. Now the lawyer must call upon his friends in organized crime to help him persuade the old man to lift the curse. Time is…
10
Qwerty (2012)
★ 6.4/10
Before introverted word-nerd Zoe gains the courage to enter the National Scrabble Championship, she meets her emotional match in Marty, an irascible recluse. She finds him equally pitted against the opposing forces in…
11
Delivery Man (2013)
★ 6.3/10
An affable underachiever finds out he's fathered 533 children through anonymous donations to a fertility clinic 20 years ago. Now he must decide whether or not to come forward when 142 of them file a lawsuit to reveal…
12
Verity (2026)
★ 6.9/10
Lowen Ashleigh, hired to ghostwrite for best-selling author Verity Crawford, uncovers Verity's autobiographical notes, and becomes involved in what may prove to be a lethal conspiracy.
13
Love Lies Bleeding (2024)
★ 6.6/10
Reclusive gym manager Lou falls hard for Jackie, an ambitious bodybuilder headed through town to Las Vegas in pursuit of her dream. But their love ignites violence, pulling them deep into the web of Lou’s criminal…
14
The Postman Always Rings Twice (1981)
★ 6.5/10
The sensuous wife of a lunch wagon proprietor and a rootless drifter begin a sordidly steamy affair and conspire to murder her Greek husband.
15
They Shoot Horses, Don't They? (1969)
★ 7.6/10
In the midst of the Great Depression, manipulative emcee Rocky enlists contestants for a dance marathon offering a $1,500 cash prize. Among them are a failed actress, a middle-aged sailor, a delusional blonde and a…
16
Night of the Hunted (2023)
★ 6.1/10
When an unsuspecting woman stops at a remote gas station in the dead of night, she's made the plaything of a sociopath sniper with a secret vendetta. To survive, she must not only dodge his bullets and fight for her…
17
Beautiful Disaster (2023)
★ 6.6/10
College freshman Abby tries to distance herself from her dark past while resisting her attraction to bad boy Travis.
18
Saccharine (2026)
★ 7.2/10
After succumbing to an obscure weight-loss craze involving the eating of human ashes, lovelorn medical student Hana finds herself haunted by the ghost of the person she's eating.
19
The Blob (1988)
★ 6.9/10
In Arborville, California, three high school students try to protect their hometown from a gelatinous alien life form that engulfs everything it touches.
20
Generation Iron (2013)
★ 6.6/10
Generation Iron - examines the professional sport of bodybuilding today and gives the audience front row access to the lives of the top 7 bodybuilders in the sport as they train to compete in the world's most premiere…