To compare directly, Facebook received $2.5bn in funding, last year turned over $5bn and made loss of $0.5bn. Disney received no funding, turned over almost $45bn and a profit of $9bn (Making it roughly as profitable as Google).
Not to mention if you couldn't liquidate Facebook if you tried, but say you defied economics and did - you couldn't buy even a single one of the top Hollywood studios with the proceeds - their market caps are all much larger than Facebook. It wouldn't even make a scratch in the industry, let alone buy it out and shut it down.
Saying there isn't enough money in Hollywood for VC's to bother with is a bit like saying there isn't enough money in oil. This is an industry that will happily dump half a billion into a single film and take cash write-downs that would make VCs shudder. Hell, lots of the hollywood companies OWN VC funds.