LOS ANGELES—According to box-office returns, the new Will Smith film After Earth II, the sequel to last month’s science-fiction adventure-drama After Earth, performed disastrously in movie theaters over the weekend. “We had hoped and assumed that audiences would be excited to see how the onscreen father-son relationship between and Will and Jaden Smith would develop in a follow-up film, but admittedly the box-office numbers fell short of our expectations,” Columbia Pictures president Doug Belgrad said of the $145 million sequel, which was filmed simultaneously with After Earth last year and scheduled for cinematic release two weeks after the first film’s premiere. “There were hopes that the introduction of Willow Smith as Zenya Raige, the long-lost little sister of Jaden Smith’s character who was raised on another planet, would pique interest, but that unfortunately does not appear to be the case. There are also some indications that the release date was poorly timed.” Studio executives added that returns for the first and second installments of the film franchise did not bode well for next week’s premiere of After Earth III starring Jada Pinkett Smith.