The paragraphs you quoted here do not say that you work exclusively for the production company. It seems to refer to a single picture or project, however, it would be impossible to give an accurate answer without reviewing the entire contract. Bring the contract to an entertainment attorney for review to get a proper answer.
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This clause does not restrict you in acting on another project, it ties you to the Producer for the specific film.
"in and in connection with the film and the advertising, publicizing, exhibiting, and/ or other exploitation thereof"
If you are concerned about a non-competition agreement, you need to look elsewhere. Better yet, since you don't know that, you should take the agreement to someone who will. That someone is an Intellectual Property law attorney or Entertainment law attorney or Employment law attorney or Contract law attorney for a review.
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No. This is simply standard language that allows the producer (and only the producer) to use your make and likeness in connection with this project. Nothing in this language prevents you from working on another project.
However, my guess is that you have been given a rather complex agreement by your producer that contains many other potential zingers. I see these deals all the time, and I regularly represent musicians and actors in them. I inevitably demand changes to the forms that these producers use, and I am almost certain you would benefit from such changes. Rather than raise this one issue, you need a lawyer to review the entire agreement. If you are serious about your acting career, don't be foolish enough to think you can read and understand this stuff without an experience lawyer (or without assistance of your agent if you have one). It is good that you recognized the need to raise this question, but you need far more assistance than on this one issue---which I am confident is one of many in the agreement.