Actor Bryan Cranston, known for playing Walter White in `Breaking Bad`, found it "difficult" to learn Japanese for his role in `Godzilla`.

The 58-year-old picked up a number of phrases to use in his latest movie `Godzilla`, but he found it very hard to master even short bursts of the unfamiliar language, reports contactmusic.com.

During an interview on BBC Radio 1, he said: "I learned it in context with the scene but you don't want to hone in too much because they'll change the scripts, so what you learn will become, 'Oh no, we're not going to do that scene?'

"A lot of it was done phonetically and we had a language coach on set to help and even when you read it, for the English speaker, to read Japanese phonetically is still difficult because they change that, there's a lilt to it that's not written. The tone is different. They could teach you anything. They could destroy your career.''