Legends of Oz is a feature-length animated film directed by Dan St. Pierre and starring the voice-and-vocal talents of Lea Michele, Dan Akroyd, Martin Short, Bernadette Peters, Kelsey Grammar, Jim Belushi and Patrick Stewart.

The film wasn't well received by critics, however online reviews from the public were very favourable.

Bryan Adams and I wrote three songs for the film, the main one being "One Day", performed by Lea Michele, the voice of Dorothy.

It was a three-year project, on and off. We worked closely with the director, the producer and the music supervisor. Every few weeks they'd be in touch, asking us to re-write a lyric, adjust a tempo, fix a drum part, change a key, or write another song altogether. A bit haphazard, or so it seemed.

The process was challenging -- often in a positive way -- but it could also be frustrating. Sometimes I'd ask myself, do they know what they're doing? ... do they know what they want?

Bryan had written music for films before, but this was "a first" for me. It was a lot of work, but it was also a new experience and a great opportunity to learn.

I was at the studio one day in Toronto when Dan Akroyd recorded dialogue for the Scarecrow character. The director ask Dan to repeat one particular line over and over , but with a slightly different tone each time: How are YOU? / How ARE you?

He must have done 20 or 30 takes, each of them different from the one before. Dan was really getting into it, perspiration dripping from his forehead. I knew I was witnessing a consummate professional at work.

In the end, I don't know how the director decided which "take" to use. They were all amazing.

I also attended a session (via Skype) when Los Angeles voice actor Randy Crenshaw helped shape some of the characters. Afterwards, Randy's voice was erased (it was just a guide) and replaced with the better-known celebrities that appear in the film. I thought Randy's contribution was incredible. Google him. He's a genius. His film and television credits include Little Mermaid, Ice Age, Shrek, Ren and Stimpy, The Simpsons, Happy Feet ... it goes on and on.  Working with Randy was another highlight for me.