what does this sentence mean? i got it from an interview with an actor.
As an actor, is it hard going into a remake that has a cult fanbase from the original that is already against the film just because it’s a remake?
A 'cult' is a set of believers (often in an extreme form of religion - but in this case the 'believers' are fans who think the original was perfect).
'Fanbase' is just a way of referring to a known mass of fans. In this case, the original film has a fanbase that can be relied on to go to the remake, but not with the intention of enjoying it; they just want to see how bad it is, how the makers have changed the plot - in the case of King Kong/TCA to see how badly the actress plays the part 'immortalized' by Fay Wray/Faye Dunaway.
The actor uses the word 'against' not as a preposition but as an adjective, with the meaning 'opposed to'.