Preparing Lining Paper before painting.

I have just put up lining paper for the first time in my life and although i have butt jointed all of the joins i couldnt avoid having some slight gaps.
Can somebody please advise me on a type/brand of filler i could use that will fill these gaps but also not ruin the finish of the paint.
Alsi have have the odd overlap, any tips?
Thanks.
Danny.

I usually fill open joints with interior polyfilla (not all purpose) the overlaps will have to be sanded down use a sanding block..Touch in any filling with your chosen colour, let this dry, then repaint walls .