Question about how to identify a short promotional text if it is a translated tagline on the official local poster.

Sometimes the short promotional text on the official local poster just simply say the release date with some useless words, not related to the plot of movie.

Example 1:


This is the official local poster of Captain America: The First Avenger in zh_CN. There are two short promotional text on the poster.

1. The top one is

钢铁侠系列原班制作班底

which means “from the studio that brought you Iron Man”. And the local logo of Iron Man is used in this text.

1. The bottom center one under the local logo of Captain America: The First Avenger is

9月9日 3D 超级英雄压轴登场

which means “the last super hero make his presence in 3D in Sep. 9th”. You can see it as a way of telling the release date with some polish.

I think the top one is not a translated tagline. So is the bottom center one a translated tagline?

Example 2:


This is the official local poster of Captain America: Winter Soldier in zh_CN.

There is a short promotional text under the character and the cast line (at the top of the poster).

复仇者联盟强势回归前哨战

which means “Skirmish before the strong return of Avengers”. And the local logo of The Avengers is used in this text. I guess Marvel Studio want to emphisize the connection between this movie and upcoming Avengers sequel movie by using this logo. I think this text is not strongly related to the plot of Captain America: Winter Soldier. So is it a translated tagline?