Producing a film is more unfamiliar territory. Although producing an album and overseeing artists is a task within itself. But film is unfamiliar territory so, here and now, that's more difficult.
T.I.If I think of something, half-way into it, I can throw it in there and it won't be so far down the line that it would be insignificant. However, I also like to completely focus on something for a certain period of time, and then be able to move on to something else.
T.I.