1. This should be
changed to ‘we had
help from chocolate
films, who were
experts in making
documentaries. And
help from the British
museum.’
Spelling mistake, this should be ‘we first
started…’
Spelling
mistake. This
should be
‘wrote’
Needs a comma. ‘or if they
know what they were, then
what happened to them?’
Replace the comma
for and. ‘who
made/found them
and how they..’