Rowling diskuterade detta på Twitter :
Loved the movie. Burning Q from my wife though: How come Newt travels by boat to cross the Atlantic instead of apparating?
J.K. Rowling: There's a limit to how far you can Apparate. Inter-continental Apparition is very dangerous!
they might splinch, right? O_O
J.K. Rowling: correct
Hon lade senare in på vanliga frågor om hennes nya webbplats :
Why couldn’t Newt just Apparate to the USA? Why did he go by boat?
Apparition becomes increasingly risky over long distances. As with most magic, much depends on the skill of the spell-caster: Apparition requires knowledge of the terrain to which one is moving, or the ability to visualise it clearly. Cross-continental Apparition would almost certainly result in severe injury or death.