Len Wiseman, director of 'Underworld' and 'Live Free or Die Hard,' on returning to big-screen action with Ana de Armas' 'Ballerina.' Interview.

Okay, which set-piece caused the most headaches? It's got nothing to do with the third act's lethal flamethrower-based sequence. Act 1's nightclub brawl, a classic staple of the John Wick movie series, wasn't as taxing as the scene that Wiseman has in mind, either.

The filmmaker admits to feeling frustrated about the online narrative surrounding the film's lengthy delay and two weeks of reshoots: "There was additional shooting because the studio loved the movie.