Probably the movie the bugged me the worst was "Last Man Standing" with Bruce Willis. I believe he is shooting 1911's in .45 ACP. In his hand it only produces a little muzzle flip. But the guys hit with these magic bullets are picked up and knocked backwards about 5 to 10 feet through window panes or do back flips, etc. Even being fairly young when I saw it, it was so exaggerated and unrealistic it bothered me. Of course that just matched the script, acting and the rest...