Learn English – the differance between “Out of Syllabus” and “Beyond Syllabus”

The following is the original line from BANNER:

Are you here to kill me, Ms.Romanoff?
’Cause that’s not going to work out for everyone.

I'm only going to focus on the second line. This is a comedic line. Banner is not absolutely invincible, but from experience, he knows he's not likely to get hurt. Here's the original and the paraphrase, with phrases marked in brackets to correlate the two:

• 1[’Cause] 2[that’s not] going to 3[work out] 4[for everyone].
• 1[Because] 2[trying to kill me is not] going to 3[end nicely] 4[because either you'll succeed and that won't be so good for me, or I'll turn into the Hulk and create all kind of havoc, damage, and possibly harm, which won't be good for you. But I don't really think you'll be able to kill me; more than likely, the 2nd scenario will occur].

Here are some language notes:

• The informal word 'Cause, coming right after the perfectly formal question prior (Complete with formal address "Ms.") creates an (ultimately comedic) tension between the seriousness of the question and the calm informality of the statement to follow.

• The word combination "work out" is a "phrasal verb" that in this case means to be successful or end nicely. Also, this usage of "work out" is a more informal register which adds to the formal vs informal tension.

• Saying one thing and meaning another is often the basis of humor. It's somewhat idiomatic to say something optimistic like, "I hope this works out (for me; for both of us; for all of us)" or "Don't worry, it's all going to work out (for you; for both of us; for all of us)". So to say, "that's not going to work out for everyone" is pessimistic in the usual sense, but Banner is using the phrase as (mostly) optimistic for himself, which adds to the humor of the statement.

• As @DamkerngT noted, "That's not going to end nicely for everyone" also has a double meaning. Let's take a more simple sentence "It's not going to be fun for everyone" means "at least one person will not have fun" but it also implies the possibility that "nobody will have fun". So there is also the sense that even though Banner doesn't believe he'll be killed, it would also not work out for him since he doesn't want to turn into the hulk. In a way, this too is humorous. The manner in which it won't "work out" for Banner is not that he-would-be-killed but rather, that it would make him very "upset".

Compare to a hypothetical scene from a Batman comic where Batman is surrounded by four thugs carrying sticks, chains and knives, and Batman says, "I think you boys should put away your toys and go home before someone gets hurt."

They can refer to more or less the same thing, but an idea and a point are essentially different.

An idea can be very broad, from "let's go for a swim" to "hey, I think I proved Fermat's last theorem."

A point is normally an argument to either support or attack an idea.

In some cases the two may be or may seem interchangeable, but in the following cases they are not:

I am thirsty; shall we go for a drink?
Good idea!

I would really like to eat something.
But in an hour dinner will be ready, so maybe you should wait.
Good point!

Who knows how we can get across the river?
Let's build a bridge!
Good idea! But we have nothing to build it with...
Good point. Maybe we should swim across then.