“Novocaine” took the No. 1 spot at the box office on its debut in theaters Friday, earning $3.9 million, according to The Numbers. The action comedy, which the Los Angeles Times called “brutal yet weightless,” stars Jack Quaid, the son of Dennis Quaid and Meg Ryan, as a bank exec who can’t feel pain. The Paramount film cost $18 million to produce, and is slated to take in $8 to $10 million this weekend. “Black Bag” came in second, bagging $2.78 million on Friday, also its opening day. The spy thriller, starring Cate Blanchett and Michael Fassbender, whom the New York Times said “play a glamorous couple of spies in this latest sleek collaboration,” is projected to rake in $10 to $15 million this weekend. In third place was “Mickey 17" which earned $2.2 million on Friday, its second in theaters. The black comedy starring Robert Pattinson is slated to take in $8 to $9 million this weekend. “Captain America: Brave New World,” which was in second last Friday, dropped down two spots to fourth, with sales of $1.5 million. “The Day the Earth Blew Up: A Looney Tunes Movie,” the franchise’s first theatrically released fully animated feature-length film, landed in fifth, with $1.05 million in revenue.