Apart from the grammatical points in the other answers:
In British English, it is widely considered grammatically incorrect (or, at least, grammatically dubious) to start a sentence with a conjunction.
For example: Starting with "Because...", "And..." are discouraged: you should use these in the middle of a sentence two separate two clauses. I would put "Due to..." in the same category as this.
However, this is a rule which is frequently broken.
And, it is certainly accepted in American English to start a sentence with a conjunction ;) I have seen this form in SAT exams, for example: asking whether this is grammatically correct. This can cause significant problem for British students taking American SATs.