The night of Oct. 10 was filled with blood and gut-busting laughter when CBS Films’ “Seven Psychopaths” preemed at Gotham’s Chelsea Clearview Cinemas.

Pic’s Gabourey Sidibe chose to see it for the first time at the screening. “I was just telling Martin McDonagh, and he must’ve thought I was kissing his ass that I could’ve watched another hour of that,” she said at new Chelsea nightspot No. 8, where guests like Gerard Butler danced when the groove hit them at the afterparty.

Sidibe admits she previously had an affinity for the crazies. “When I used to work in an office, I would watch serial killer movies, because when I was a psychology student, I was most interested in sociopaths,” she revealed. “This is going to sound terrible, but I really enjoyed watching the Ted Bundy movie and ‘Summer of Sam.’ ”

The pic’s creatives also have their fave psychopaths. “Sam Rockwell and I love Travis Bickle,” said writer-helmer McDonagh. “We love Robert De Niro in ‘Taxi Driver.’ He’s not an all-out psychopath, but he’s kind of like the guys in this film: He could go either way. He could go dangerous or he could go nice and sweet.”

The biggest stars of the evening seem to have been Christopher Walken and Bonny the Shih Tzu, who actually shared a mutual affection, according to McDonagh.

“Christopher loved the dog so much,” he said. “It was the cutest little thing. But I love rabbits so the rabbits were the thing for me. Maybe I might adopt one.”