I have a copyright question, It's a question about the

15. INTELLECTUAL PROPERTY
The Contractor warrants to the Company that it has obtained from the Contractor Personnel a written and valid assignment of all existing and future intellectual property rights in the Contractor Services and of all materials embodying such rights and a written irrevocable waiver of all the Contractor Personnel's statutory moral rights in the products of the Contractor Services, to the fullest extent permissible by law, and that the Contractor Personnel has agreed to hold on trust for the Contractor any such rights in which the legal title has not passed (or will not pass) to the Contractor. The Contractor agrees to provide to the Company on request a copy of this assignment on or before the date of this Agreement.
All and any copyright or any other intellectual property rights (whether vested or future and, if future, in respect of copyright by way of present assignment of future copyright), which may subsist and to which the Contractor and/or the Contributor Personnel would otherwise be entitled in the product of the Contractor Services are assigned to the Company absolutely with full title guarantee for the full period of copyright and any renewals revivals revisions and extensions thereof. In the event that the Contractor and/or Contractor Personnel are entitled to any performers rights in the products of the Contractor Services the Contractor grants to the Company such consents as may be required by law to exercise such rights. In addition, the Contractor acknowledges that the Contractor Personnel shall not be entitled to receive any further remuneration in addition to the Fee in respect of the exercise by the Company of any such rights.
The Contractor and Contractor Personnel further agrees to irrevocably waive any and all so called “moral rights” to which the Contractor and/or the Contractor Personnel may now or in the future be entitled in the product of the Contractor Services to enable the fullest use of the product of the Contractor Services.
Without prejudice to the generality of this clause the Contractor hereby confirms and agrees that the assignment of rights in and to the products of the Contractor Services includes any and all so-called "rental" and "lending" rights in and to the product of the Contractor Services. It is further agreed that the Fee takes into account and includes a payment in respect of such "rental" and "lending" rights and that such payment constitutes adequate and equitable consideration for the assignment and exercise of all such lending and rental rights, including, for the avoidance of doubt, by pay per view or payment on demand. Notwithstanding the foregoing, if the Contractor is entitled to receive any monies derived from the lending rental or cable retransmission rights in any Programme incorporating the products of the Contractor Services from any collecting societies which do not reduce the entitlement of the Company to monies from such rights, the Contractor shall be entitled to receive the same but shall not be entitled to claim the payment from the Company or from its assignees licensees or successors in title.

I need clarification on what "any renewals revivals revisions and extensions thereof" means

Thanks for your offer. I may well take this up in the future when i have more clarity. I guess for now my basic question is whether a follow-up documentary about the same people and subject matter as a previous film would constitute a breach of copyright if it was called something else, and broadcast on a different platform?

Thanks for your answer.
This contract is signed by the director of a documentary who is hired by a company to make it.
It refers to the IP of that documentary, with the director signing away their rights. However, what’s unclear is what happens if the director then wants to make a new film, similar film, with the same cast and subject matter but for a different platform and called something different…
I’m also waiting for clarification on what contract the cast themselves signed with the company at the time.
It seems like the wording of the contract is hinting at any IP arising from the film, any new versions. Guess in that situation it becomes a case of defining what consititutes a new work, and what is indeed, a reversion or extension…