What was the name of the very early Canadian film that Jim Carrey was cast in?

The very early Canadian film Jim Carrey was cast in was Copper Mountain.

Released in 1983, Copper Mountain was a Canadian comedy television film made for the CTV Television Network. Carrey played Bobby Todd, alongside Alan Thicke as Jackson Reach. The story follows two friends visiting a Colorado ski resort, with romance, comedy and musical performances woven into the plot.

The film is unusual in Carrey’s career because it predates his major Hollywood breakthrough by more than a decade. It was also produced as a promotional-style project connected with Club Med’s Copper Mountain resort, which helps explain its distinctive setting and commercial feel. The film featured appearances by performers including Ronnie Hawkins, Rita Coolidge and Bill Champlin.

A common mix-up is Once Bitten, the 1985 horror comedy often described as Carrey’s first starring role in a theatrical feature. Copper Mountain came earlier, but it was a television film and not the movie that made him famous. Another early Canadian production, Rubberface—originally broadcast as Introducing... Janet—is also associated with Carrey’s beginnings, but it is not the answer to this question.