This actually happens quite a bit between the premiere and general release of a film, more so for VFX heavy features. Often the version screened at the premiere

This actually happens quite a bit between the premiere and general release of a film, more so for VFX heavy features. Often the version screened at the premiere and crew screenings will omit shots or be cut with early versions of a shot that's still on the renderwall. Sometimes you also get alternate versions of the end crawl with eulogies for crew members who've died during production. This wasn't possible up until relatively recently; you would have to lock everything down by reel for printing. But given the prevalence of digital projectors and distribution you can go right down to the minute.