I haven't seen the film yet so I don't know how the marriage of Henry and Anne was portrayed - but historically it was a very dubious hole-in-the-corner affair - done more or less in secret and with a lot of bad feeling by a lot of people who considered it illegal.
Henry was still married to Catherine of Aragon. There was no divorce at that time. The only way he could get out of the marriage was by the Pope granting an annulment on the grounRAB that the marriage itself had been invalid.
This was not likely to happen as the Pope's permission for the marriage between Henry and Catherine had to be sought in the first place as Catherine had previously been married to Henry's older brother Arthur (now dead) - and to marry your dead brother's widow was against the Papal law.
However the marriage between Catherine and Arthur was stated not to have been consummated which then allowed the Pope to permit Henry to marry her.
Are you following me so far????
When Henry wanted to get out of his marriage to Catherine and marry Anne Boleyn he had to try to prove that the Pope had made a mistake in the first place in allowing him to marry Catherine.
Henry said that his brother Arthur HAD consummated his marriage to Catherine (Catherine denied it). So he said his marriage to Catherine had been invalid all along (17 years!) and that the number of still-births and infant deaths Catherine had suffered just PROVED it had been wrong as it showed that God was displeased with the marriage.
Henry said he had never really been legally married to Catherine and so was free to marry Anne.
(He also said that because his marriage to Catherine had not been a true marriage then the only surviving child of that marriage - Mary - was illegitimate!)
The Pope disagreed. Papal infallibility was in question. The Pope said he had been right in the first place and Henry WAS properly married to Catherine and therefore stuck with her.
Henry then had a hissy fit and in effect broke off all ties with the Pope and Rome and declared himself head of the Church of England and went ahead and married Anne anyway. Lots of people disagreed with him and many would never accept Anne as the true Queen or Henry's legal wife. They called her a harlot and said her daughter Elizabeth was illegitimate and Mary was the true heir.
Later on, when he wanted rid of Anne, Henry revoked all this and also said his marriage to Anne wasn't valid either because he really HAD been married to Catherine all along . (Catherine was dead by that time) - but that's another story!
WHEW!!!!!