I struggle with the issue of where to draw the line in terms of acceptable films to watch.
Most films today have some form of a “love scene” which most people take for granted.
The definition of pornography from the catechism refers to anything that involves the sexual act - either real of simulated.
An example I would use is the film Titanic which is a really good film with a brief sexual encounter - but of you were to take the definition from the catechism literally it would be a mortal sin to watch the film Titanic.
Common sense tells me what is really pornographic and damaging, but many good films have some level of mild sexual content.
I looked up the catholic news agency which is a catholic review service and very few films are considered morally objectionable with most films which have some sexual contact filling somewhere in the middle. They seem to take a sensible position on this. If you were to take the definition from the catechism literally it would mean that you could literally watch few films that are produced these days.
I assume it is ok to use common sense on this issue.