7 worst on-set celeb accidents: from Channing Tatum's burned privates to Shia LaBeouf's head injury

Being a movie star isn't always what it's cracked up to be, as we learned with these celebs who sustained on-set injuries so painful, they're sure to make you cringe.

1. Shia LaBeouf: The 29-year-old actor required stitches after injuring his hand and suffering a laceration on his head while filming the upcoming American Honey in North Dakota. According to Variety, a mishap occurred during a scene in which LaBeouf was supposed to put his head through a glass window.

NEWS: Shia LaBeouf Suffers Head Injury on American Honey Set

2. Jackie Chan: The famous martial artist and stuntman has incurred almost every injury you could think of -- a dislocated shoulder, broken fingers, spine damage and a dislocated cheek bone, to name a few. The legendary actor suffered second-degree burns, a back injury and a dislocated pelvis while filming a stunt for 1985's Police Story that required him to slide down four stories on a metal pole decorated in lights.

3. Jim Caviezel: While starring as Jesus in 2004's The Passion of the Christ, Jim was struck by lightning just before shooting the Sermon on the Mount scene. "People started screaming and they said I had fire on both sides of my head and a light around me," Caviezel told Fox News. "I had locked eyes with people and it was very eerie because they made a weird sound -- the kind of sound people made when they saw the jet plane run into the World Trade Center."

4. George Clooney: While shooting Syriana in 2005, the Oscar winner sustained an agonizing spinal injury from a stunt gone wrong. He later told Rolling Stone the recovery process was so bad that he thought, "I can't exist like this. I can't actually live."

5. Charlize Theron: While doing back handsprings on the set of Aeon Flux in 2004, the Oscar-winning actress landed on her neck, which resulted in a herniated disk and nerve damage. The injury, which almost left Charlize paralyzed, caused production to halt for eight weeks so that she could recover. The injury affected her so much that she vowed not to put her health at risk for Mad Max: Fury Road.

6. Johnny Depp: The Golden Globe winner underwent surgery in March after hurting his hand in Australia while shooting the highly anticipated Pirates of the Caribbean: Dead Men Tell No Tales.

NEWS: Johnny Depp Injured While On Location for Pirates 5

7. Channing Tatum: The Magic Mike XXL star told Howard Stern that he accidentally burned his junk while trying to keep warm on the set of his 2011 movie, The Eagle. Channing dumped what he thought was warm water down his wetsuit. In turns out the water was actually scalding hot. "It kept burning for the next 20 to 30 minutes," Channing said. "I was having a complete panic attack."