No, you are not taking food out of the animators at Disney's mouth by not paying whatever obscene price they want for that Blu-Ray. Those workers got paid a salary to make the content and that has already been said and done. Across all industries the amount of royalties going to creators, especially when it takes hundreds of them to make a product (CGI movies, animations, etc) is within a margin of error of 0.
Your money goes to investors and corporate coffers when you are buying popular mainstream media. If piracy in aggregate causes lower profits than anticipated that results in business as usual - reevaluate your product development and / or change strategy and / or complain on mainstream media that you need to use force of law to make people buy your stuff because that obviously makes sense. The creators behind whatever the thing is already got paid all they are going to get in the average case.
A very small percentile of the revenue in the creative industry is actual content creators themselves trying to sell copyrighted works they made to make a living off of them. Most professional media is made by salaried or contract artists that are making the thing on behalf of some corporation whom has the intent to try to profit off selling the copies of the finished work.
Paying for a Disney movie is (in at least some small way) a vote for the policies of the PR and corporate lobbying that Disney performs. If you support shorter copyright terms, it's understandable to not give money to someone who you reasonably expect to use that to extend copyright terms.
Nobody brought up DRM in this chain of comments until you. I'm not sure why you're defending it.
I could afford every content I consume, yet I make sure my content cost is 0 dollars and 0 cents.