Hi,
I've mentioned it previously in 'car insurance' threads here that there's many variables that go to make up a premium. There's no set 'price' of '£1000' or '£2200' even as a ballpark as rates vary tremendously all over the UK.
Also, more recently, the whole insurance industry is adjusting their fees to be on the rise after several years of 'relatively' low premiums so that's also partly the reason.
What you need to do is speak with a number of insurance brokers, get quotes from various insurers who are not on the price comparison sites and then also talk to specialist insurance agents who offer specific policies depending on the industry you are in. Unfortunately, I think the 'Film & TV industry' is one of those 'higher priced' ones so you are really going to need to ring around a lot to try and find better premiums.
Don't be urged to pay £3K + for car insurance, look to different cars as already mentioned. Where in the UK do you live? if you are near to a particularly busy area for car insurance related payouts a 'hotspot' then unfortunately your rates will be higher.
Talk to companies like Adrian Flux, A-Plan, Performance Direct, Classicline. I've insured some of my previous cars with them over the years depending on who gave the best cover etc.
Cheers, DtM! West London & Slough UK!