LOS ANGELES — Forty years after he first appeared in theaters, Michael Myers is still drawing huge audiences for a good scare. Universal Pictures said Sunday that “Halloween” took in an estimated $77.5 million in ticket sales from North American theaters. It captured first place at the box office with the second-highest horror opening of all time, behind last year’s “It.” It also marked the second highest October opening ever behind “Venom’s” $80.3 million launch earlier this month. The studio also says it’s the biggest movie opening ever with a female lead over 55, in star Jamie Lee Curtis. David Gordon Green directed “Halloween,” which brings back Curtis as Laurie Strode and Nick Castle as Michael Myers and essentially ignores the events of the other sequels and spinoffs aside from John Carpenter’s original. Reviews have been largely positive for the new installment, with an 80 percent fresh rating on Rotten Tomatoes and a B+ Cinema Score from audiences that were mostly older (59 percent over 25) and male (53 percent).