"Despite the movie’s financial success, it received several from critics for its thin plot".
Historically, these fragments were used as handy, rock-like missiles. Because they were heavy and easy to throw, they became common projectiles during riots or street brawls when stones were scarce. The Infamous Legal "Brickbat" brickbat
: A poorly received play or movie might be greeted with "brickbats" from critics. "Despite the movie’s financial success