They told me these films are not indexed, so again you will not find the entries on Familysearch nor on Scotlandspeople, so I have found it has paid off to order in the second lot of films and obtained entries not seen before.
If by 'second lot of films' you mean parish registers later than 1855, this is a whole new ball game.
The existing Church of Scotland parish registers (to 1854) were collected by the Registrar General after the start of statutory civil registration in 1855. These are the basis of the information on SP. They were indexed by the LDS as part of the International Geneaolgical Index, which is why the indexes are available at FamilySearch.
Later parish registers are still held by the local churches or sometimes by local archives, and they are not on SP. The same applies to registers of churches other than the Church of Scotland and Roman Catholic Church. Some of the later registers, and other denominations' registers, are now being
indexed on FamilySearch, but in the case of other registers in the care of the National Records of Scotland the churches (who still own them) have refused to allow them to be indexed on SP. So it's a very complicated picture!
Note that FamilySearch does
not have any actual records online. It has
indexes to the records, which can only be viewed online at SP or offline in the form of microfilms. The indexing was not comprehensive; for example the LDS entirely omitted to index the Duffus parish register from 1820 to 1854, although the microfilm is available. SP are aware of these shortcomings and intend to remedy the omissions, but I do not know whether all these gaps have now been dealt with.