Once you start a business or something on your own, you tend to have that itch to expand your presence and get into various other fields. This happens a lot in the cinema industry wherein singers become actors, directors become producers...
You might enjoy the humor from the comedians or the actors onscreen but the real heroes are actually the dialogue writers who give those punch lines....
Whenever a film becomes a hit or catches attention, the major share of the credit goes to the lead cast, the director and to an extent the music director....