The entire opening 15 minutes of the movie (except for some shots of a dog becoming "infected" by the alien parasite) are the final 15 minutes of The Hidden (1987).
The good guy is shooting a 9mm at the alien the kitchen. When he runs out of ammo, he pulls the trigger twice and the hammer falls on an empty chamber twice. Note also that the slide doesn't lock back. That's not how a 9mm works.