Take a look at the trailer for Steven Spielberg’s The Adventures of Tintin (a delightful movie, even though I had a really hard time getting used to these characters speaking English) and listen to the way Tintin pronounces his own name in English:

https://www.youtube.com/watch?v=RiPUce42iww

I can only assume that the way he says it in the movie is the normal way it’s said in English and indeed, that sounds weird.