Factual error: Near the end of the film, Knox is flying a Huey helicopter, and the Angels hitch a ride by shooting it with a speargun and dangling on the line behind it. Suddenly adding about 200kg to a Huey in flight like that is going to cause all sorts of problems with the trim and airspeed of the aircraft. The pilot would know immediately that something was wrong. (01:23:20)

Charlie's Angels (2000)
Ending / spoiler
Directed by: McG
Starring: Drew Barrymore, Bill Murray, Cameron Diaz, Sam Rockwell, Tim Curry, Lucy Liu, Crispin Glover, Kelly Lynch, John Forsythe, Matt LeBlanc, Tom Green
Eric Knox and Vivian Wood are the bad guys. Eric believes Charlie was responsible for his father's death. He 'accidently' kills Vivian and the creepy thin man while trying to kill the angels. In a helicoptor, Eric shoots a missile at Charlie in his beach cabin, but the Angels were able to mess with its wiring so it turns around and hits Eric, exploding him. The Angels, Charlie, and Bosley remain unscathed.
Trivia: Since Drew, Cameron and Lucy are all anti gun, they went through the entire movie using alternatives to guns.
Question: Does anyone know the story behind the "Creepy Thin Man?" Like why he likes to pull hair and smell it? Anything that helps me understand his character is appreciated.
Answer: This character gets a backstory in the sequel (Charlie's Angels Full Throttle). Supposedly he was a runaway from a circus, who found refuge at an orphanage. He didn't much like haircuts when he was little.





Suggested correction: Knox wasn't a trained pilot. Either he had no clue to what was going on, or he thought something may have been wrong, but didn't know what to do about it.
Taking off and landing a helicopter are by far the most intense and difficult part of a pilot's training. Seriously, 99% of learning to fly is learning how to land and take off. If the pilot is skilled enough to take off in a Huey he is easily skilled enough to notice a massive additional drag on his helicopter due to the additional weight of the angels and the air resistance put up by such a bulky protrusion on his aircraft. If he isn't skilled enough to notice that, he isn't skilled enough to take off in the first place.