Judy Garland

After years of being a perfect child movie star, by the 1960s Judy Garland was notorious for her bad behavior on movie sets, which actually ended up costing her several roles, like in the 1967 film adaptation of Valley of the Dolls. Cast to play aging actress Helen Lawson, Garland reportedly upset filmmakers so much with her poor attitude and work ethic that she ended up being fired and replaced by Susan Hayward. Interestingly, Jacqueline Susann, who wrote the book, penned the character of Helen with Garland in mind. Sadly, her dream casting just couldn’t come true.