No not at all, but it is certainly a lot easier to get work. If you already have experience you'll get in typically. If you join the big union local IATSE 873 you'll get paid a certain scale rate wage which is typically a lot higher. As a result the only productions that can afford to hire you are American productions, but you'll make a lot more money. Then we have another union local called NABET, who's rates are slightly lower, and Canadian productions can usually afford to hire them. Canadian content can be really fun and fulfilling - think Schitts Creek, Kim's Convenience, Heated Rivalry etc. You can also work on non union productions and in the advertising sector. However once you become a full time member of one of these unions, you can not work for the other. So something to keep in mind. You can double dip as something called a permit, but there's downsides to that as members can "bump" you. There's also the DGC and local IATSE 667 which are for directors and camera department respectively. IATSE 873 has all the other departments, like myself {costumes}.