There were coloured still of ANTR used for promotional purposes. At least one of the film posters was colourised.
I think the question of colorized movies is more or less just a personal opinion.
If you were of a strictly historic interest in the movie you might be against it..
But on the other hand colorizing all of the details , in particular to the interiors of the ship.
I believe this would add to the Historic interest..
Comment on the "Lobby Posters" :
My memories go back to my younger days of the 1950's.
The 1953 "Titanic" in particular.
I don't remember ever seeing a poster that wasn't colorized.
Are there some that were black and white of this movie and ANTR that could be posted ?
Maybe a bit off-topic, but one movie I would like to see colorized is the 1936 Gene Autry movie "The Big Show."
Much of this movie was fillmed at the Texas Centennial Exposition in Dallas.
One of the colorized posters shows a scene on the inside of the Gulf Radio Studio during one of the musical numbers.
The colorized poster brings out the details of the art deco interior of the studio and the colors of the clothing of the actors.
It would be interesting to compare the colors of the Fair Park of 1936 to the Fair Park of 2018.
There has been quite a bit of restoration that has been done in recent years gradually to restore the buildings and grounds to their original 1936 "Centennial" appearance.
...As I post this, it's almost 2019 ! LOL