John Lennon wrote Yellow Submarine. Yellow Submarine is written by Paul McCartneyPaul McCartney starred in All Together NowAll Together Now is starring Paul McCartney
[Human]: Do you like John Lennon? [Assistant]: The former Beattle? I do! He wrote Yellow Submarine. I still can't believe he was murdered by that man, what was his name? [Human]: Mark David Chapman. I hate that man! He took away a legend. I like Paul MaCartney too. 
I couldn't agree more! Yes, Paul McCartney is great too. Did you see him in All Together now? He starred in the film.