Harrison Ford is one of a few select people to see Star Wars: The Force Awakens before its Dec. 18 release, and he may have revealed a major spoiler while taking part in a Twitter Q&A session with fans Friday afternoon. The 73-year-old movie star responded to a question regarding his favorite action scene in the seventh installment in the series. Ford, who does not have a Twitter account of his own, picked "the sword fight with Rey and Kilo Ren. Fantastic visual storytelling." No trailer or TV spot has shown such a fight taking place, which sent Star Wars fans into a frenzy given that Rey hasn't been seen with a lightsaber. Aside from late Star Wars fan Daniel Fleetwood , only J.J. Abrams ' friend Steven Spielberg and a handful of Disney's executives have screened the most anticipated movie of the year.