"Solo: A Star Wars Story" is losing momentum quickly at the box office. After an underwhelming launch, the space saga fell 65 percent in weekend two with $29.3 million from North American theaters, according to studio estimates on Sunday. That's over $135 million shy of where the franchise's other spin off, "Rogue One," was in its second weekend. "Solo's" tumble brought it even closer to "Deadpool 2," which is now in its third weekend in theaters.