The example Nelson likes to use is when he had to digitally create actor Oliver Reed when he died in the middle of production on 2000's «Gladiator» (the work would earn him an Oscar). (businessinsider.com)
However, switching directors in the middle of production is a pretty drastic move, and may signal some real creative issues with the new spin - off. (relevantmagazine.com)
Smack dab in the middle of production for a holiday campaign, I've been feverishly working with my crew to get as much done in the past week. (mattbites.com)