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Sure, these are big companies, but the decision-makers in content security are a pretty small community. Previously I was the CEO at one of the biggest suppliers in this space (and Matthew was CTO). We've been working with these people for the past 7 years, so getting in the door won't be a problem.
As far as selling the product through, it really comes down to tailoring a tight value proposition that demonstrates P&L savings. As with any sales strategy, you have to know what your customer needs and how you can help them deliver more value. We have a pricing strategy that will enhance security while saving studios money, something customers always listen to. :)