The problem is that to see it that big they would have to be between galaxies or the other galaxy would have to be colliding with theirs (which would make it visable in almost every shot in the saga) or very, very big (which would have the same effect).

We can only see Andromeda in detail in those nice photographs through looking through a very powerful telescope.

Everywhere in our galaxy the view would be pretty much the same (though both our galaxy and it are moving together very quickly).