It's not just Americans. I remember an Indian chap at a call centre I worked at a few years ago.
He rang a customer and asked for Mrs Butch -a-non (Buchanon). The lady put the phone down on him after saying he must have the wrong number.
Once he had to go to a Xerox (pronounced Zerocks) printing centre that we used. 'Where's Xrocks' he asked us.
An indigenous British Girl once asked 'What's a Fassia?' (Fascia).
My wife, of South Asian origin, used to say 'Char Les' (two syllables) to refer to Prince Charlie.