Kissing While Acting
All of what you stated might be true, but it’s still an act that could lead one to zina. Just because a scene is shot in the presence of others doesn’t mean that it won’t encourage one to an immoral act later on. You have to understand that humans have an extremely strong desire for intimacy, and when this desire takes over, our faculties of reason and rationality quit working. That’s the reason why we’re asked to stop it in it’s tracks and refrain from situations which may make things impossible (or at least extremely difficult) for us to control.
In addition to what Faisal sb has said, I personally know some people who entered showbiz . According to them, things get pretty sinful (will not give details) if you want to get success or go ahead. Becareful and good luck for your endeavour.