"I'm a father now, and what that does to you is makes you more aware of other children and the plight of other families." - Brad Pitt

Brad has used the wrong verb form in a verbal phrase. In the clause "what that does to you is makes you more aware of other children and the plight of other families," the subject is "what that does to you," the linking verb is "is," and the predicate nominative is "makes you more aware of other children and the plight of other families." This structure is not grammatically correct because "makes" is a verb in the present tense and a verb cannot be a predicate nominative. Only a noun can function as a predicate nominative. Changing "makes" to "make" creates an infinitive (the word "to" that is generally paired with the base form of the verb in an infinitive can be omitted in some contexts), and "make you more aware of other children and the plight of other families" becomes an infinitive phrase that functions as a noun.

"I'm a father now, and what that does to you is make you more aware of other children and the plight of other families."

The following version of Brad's quote corrects the original error and is more concise:

"I'm a father now, and that makes you more aware of other children and the plight of other families."

While it is easy to understand that Brad is making a statement about himself and following this with a generality that includes the pronoun "you," the literal interpretation of this sentence is that Brad's being a father makes other people more aware of other children. This may be true in part, but it is probably not what Brad meant to say. The statement can be modified to express his meaning in a clearer manner.

"I'm a father now, and fatherhood makes you more aware of other children and the plight of other families."

"I'm a father now and that has made me more aware of other children and the plight of other families."