Stiller has directed most episodes of the Apple TV hit so far, but season three poses some scheduling conflicts.

With a hit TV series, a documentary about his parents, a WWII movie and 'Focker-in-Law' in the pipeline, Stiller, near 60, isn't slowing down: 'You only have so much time.'

The writer and comedic actor will be taking a step back to direct a war movie about a downed airmen who lands in occupied France.