Povenmire recalled teachers telling him, You cant make a living drawing superheroes!
Turns out they were wrong about that.
A similar bigger-than-life quality to both properties helped, Povenmire told EW.

Credit: Disney XD
Phineas and Ferbis like the imagination of a nine-year-old boy if it was unhampered by reality.
Theres a lot in common there.
His utility is just much more petty and small-minded.
We came out of that meeting and went, We should just put that conversation in the show.
And indeed they do.
Phineas and Ferb: Mission Marvelairs on Disney Channel on Friday, Aug. 16 at 8 p.m. ET/PT.